The BEST $599 Telescope for Astrophotography? Askar 71F Review

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SarahMaths Astro

SarahMaths Astro

Күн бұрын

In this video, I review the Askar 71F telescope for astrophotography. Master light files of final image shown are available for my amazing Patreon members - thank you!: / sarahmathsastro
Special thanks to Nico Carver ‪@NebulaPhotos‬ for his images and recommendations!
Affiliate links to Askar 71F Telescope + more :) (thank you!!)
Askar 71F
-HPS: bit.ly/486cayW
-Agena: bit.ly/4dKdUQc
Dual-narrowband Filter
-Amazon: amzn.to/4eXn0cI
Askar 71F Reducer
-HPS: bit.ly/485iuXr
-Agena: bit.ly/46KnPTB
AM5N Mount + Tripod
-HPS: bit.ly/4dGL1nn
-Agena: bit.ly/487FJQR
AM3 Mount + Tripod
-HPS: bit.ly/4dJaRHt
-Agena: bit.ly/47sHsPI
Dedicated Astro Camera:
-HPS: bit.ly/3YnRP5c
-Agena: bit.ly/3YqHvZV
Join me on social:
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Website: www.sarahmaths...
#astrophotography #astronomy #deepspace #deepsky #nebula #beginners #spacephotography #galaxy #moonphotograpy
Affiliate Links:
I am an affiliate partner with Agena Astro, High Point Scientific, and Amazon. Some of the links above are affiliate links, which means at no extra cost to you, I will make a small commission if you use them to make a qualifying purchase. This supports the channel so I can continue creating videos. Thank you for your support!

Пікірлер: 314
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
If you would like to support this channel further, please consider becoming a Patron ❤ www.patreon.com/c/SarahMathsAstro
@MrLuke1970
@MrLuke1970 Ай бұрын
Hello Sarah I'm an happy owner of the 71F and i can confirm it's one of the best if not the best scope in a price/performance prospective. Very nice results with or without the reducer. Actually Askar is making very well rounded telescopes regarding build quality and optical performance. Hint send another nice letter to them asking to review their brand new SQA 85 telescope. Clear skies 😊
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Hello Luke, that’s amazing! So glad everything has been working well for you. Thanks for sharing your experience, that’s very helpful! And, I may just have to send that letter 😉
@blaxton5280
@blaxton5280 Ай бұрын
Not many have caught on to this refractor, yet. Thanks for making this video! I've shot M33, Iris, and Wizard so far with great results. I just got the reducer and imaged the Heart Nebula the other day. The stars were indeed pinpoint across the entire field with both configurations on my 533MC Pro.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I’m very surprised other haven’t caught on either. I’m also happy to hear that you’ve had such great results with/ without the reducer and also with the 533MC. Cheers
@gghana
@gghana Ай бұрын
I always really enjoy your reviews. The humour and not taking things too seriously is very appealing. And you know your stuff! Keep it up.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, I appreciate your feedback and support :)
@Mickken
@Mickken 17 күн бұрын
I love your channel. I'm an underwater photographer. I'm a beginner in astrophotography, and I really love to learn. Thank you, teacher! I'm from Mexico City.
@SarahMathsAstro
@SarahMathsAstro 17 күн бұрын
Thank you! That's so cool you're an underwater photographer. Seems like you're intrigued with everything from the depths of the ocean to space :) cheers from the US
@jessfritsche
@jessfritsche Ай бұрын
I’ve been aiming for this scope ever since it was announced and I cannot wait to get my hands on one…Thanks for covering it!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I hope you get the chance, Jess! Thanks for stopping by. Cheers
@Naztronomy
@Naztronomy Ай бұрын
Great review! I've been using my 71F for almost 6 months now and it's amazing. The reducer makes it even better. Pairs nicely with both my IMX533 sensor and Crop sensor cameras.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you! That’s awesome to hear all around ☺️
@AstroDenny
@AstroDenny Ай бұрын
Great content, as always. I've always found the Askar made stuff to be pretty good. I was surprised to see that it came with visual stuff. Anyway, you covered all the important points on this and the star quality was really impressive at that price point. Thanks for sharing and have an amazing day.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, Denny. I was surprised, too. I think it's neat for a quad that you can do observation with it since that's not always the case. Thanks for taking the time to watch and for your much appreciated feedback. I hope you have an amazing day too!
@LuiszDiaz
@LuiszDiaz Ай бұрын
I'm starting with deep space astrophography and the 71F is my first scope dedicated to that job (I have a Mak for planets and surfaces), love it so much, I found the perfect balance in it. I love to see the potencial that scope have, and your review just give me a good path to follow in matter of assembly and workflow, thanks a lot and cheers!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
This is excellent! I'm so excited for you and happy this video could be helpful along your journey. Thanks so much and cheers to you, too!
@nevadaxtube
@nevadaxtube Ай бұрын
I really enjoy your poise and personal presence. You are confident and articulate which is very appealing. Cheers to you. Andrew
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, Andrew!
@MrFunkinPure
@MrFunkinPure Ай бұрын
That is a lovely image. Great, concise and detailed review as well.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you :D
@donatienhainaut6000
@donatienhainaut6000 17 күн бұрын
Nice and useful review. I've just bought it and the first results are really promising. Sharp images and crip colors of Andromeda, Pleiades and Veil Nebula. Waiting for beter weather for further tests. Thanks! This would be great to test the new focal reducer.
@SarahMathsAstro
@SarahMathsAstro 17 күн бұрын
Happy to hear this was useful and congrats on the new scope! That's awesome that you've been able to image with it a bit and that the results have been promising. Hopefully the weather cooperates soon! I've heard great things about the reducer so far from a few people that have it. I may get it myself. Thanks for taking the time to stop by! Cheers, Sarah
@ToddChevrier
@ToddChevrier Ай бұрын
Hi Sarah! Great job on the video. I first saw this telescope from Nico's video and I am a seasoned astrophotographer. I was looking for a smaller 2nd telescope to get larger celestial object as it is a pain to do mosaic with the ASI294MC PRO and 8" Newtonian....too time consuming and clear skies in Wisconsin don't happen too often. I opted for this telescope and the ASI2400MC PRO with the ASI AM3 mount. This was the best decision ever. I have some jaw dropping images posted over on Facebook and I'll soon be uploading to my astrobin.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Hi Todd! Thank you, I’d love to see the images if you get a chance to share. I’m stoked that your setup has been paying dividends :)
@nikaxstrophotography
@nikaxstrophotography Ай бұрын
The final image of the lagoon was stunning looks like a great little scope!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That’s very kind of you, thank you!
@Crimsonyte21
@Crimsonyte21 25 күн бұрын
Hi Sarah, just wanted to let you know that I've taken the plunge and bought this telescope as my first. My current system is Askar 71F, HEQ5 Pro Mount, ZWO 2600MC Pro, ASIAIR, with a guidescope and camera for autoguiding. Thank you for this review. This telescope really called out to me for some reason, and I'm so happy I bought it. In a few years time, I'm hope to get a much large aperture and focal length telescope to image those smaller object in space. Hope you will have some recommendations for me in the future as well.
@SarahMathsAstro
@SarahMathsAstro 22 күн бұрын
Congratulations!! Can’t wait to see some images :) cheers!
@old_photons
@old_photons Ай бұрын
Just a quick watch for me (not in the market) but focused more on the final 1/3rd of your video - how it performed. A solid assessment. Nice work Sarah!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks for taking the time to watch even still! Appreciate it!
@old_photons
@old_photons Ай бұрын
​@@SarahMathsAstro You just had to lure me in? 1]) Can of anti-matter 2) Olde English letter appealing to Askar 3) Special effects! 4) Cat accessory for the not so functional - multi-functional handle - I see what you mean here... bwah-ha-ha
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@old_photons I just couldn’t resist :)
@starrtraveler29
@starrtraveler29 11 күн бұрын
@@old_photons Cat accessory should be number one on the list ;)
@SarahMathsAstro
@SarahMathsAstro 11 күн бұрын
@starrtraveler29 I 100% agree :)
@roderickwho1983
@roderickwho1983 Ай бұрын
"Quantumy" ? Love it :-) you caused my wave function to collapse ! ;-) Very helpful video, thanks Sarah
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Absolutely perfect response, thank you!!
@eottoe2001
@eottoe2001 Ай бұрын
Yes!
@longhornastro
@longhornastro Ай бұрын
Great video Sarah. Sorry I was so critical on the comments I made on a video back in August This one is very good please keep up the good work
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
No apology necessary, feedback is all always welcome! Thanks for coming back to watch. Cheers!
@thefailedastronomer7407
@thefailedastronomer7407 Ай бұрын
I love that you incorporated Agile methodology into your review. And please tell me that was the actual letter you sent to the telescope manufacturer. That would be hilarious. Absolutely love your videos.👍🏾👍🏾👍🏾
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Agile is life :D
@PatrickManley
@PatrickManley Ай бұрын
The question is --- what does the astrophotography backlog look like? Fantastic!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
😂 Will need to discuss at the retro!
@Jim-hq1sj
@Jim-hq1sj 11 күн бұрын
I look forward to all your videos. Do you have plans to review the new Celestron origin any time soon?
@SarahMathsAstro
@SarahMathsAstro 11 күн бұрын
Thank you, Jim! That means a lot. I'm not currently, but would be open if the opportunity came about. It looks interesting.
@Wheeljack678
@Wheeljack678 Ай бұрын
I thought this was a really good review. I enjoyed watching this. Your goofiness and lovely sense of humor really adds to the entertainment-value as well as the educational. The Askar really looks like a great starter-scope with a focal length appropriate for many objects, as well as a forgiving f-ratio. F/6.9 is not that bad - especially not in the world of guiding and long exposures. (I currently have an 80ED which with reducer is brought down to f/6.3)
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, I really appreciate that. I couldn’t agree more with you about the framing and focal ratio. I hope your 80ED has been treating you well!
@d.fresh.750
@d.fresh.750 Ай бұрын
You almost made your very own SpaceCat!!! Nice, thorough review Sarah!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Almost!!! Haha, thank you!
@scotiaastro
@scotiaastro Ай бұрын
Great review Sarah! Looks like a nice wee scope and really versatile...I'm looking at one of the PHQ series for my next wide field rig...happy imaging and hope you managed to see Comet A3! :)
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
A nice wee scope, indeed! You also can’t go wrong with the PHQ series. Thank you! I was able to image the comet earlier in the week. Loved your latest Reel! Cheers!
@nancyricigliano19
@nancyricigliano19 Ай бұрын
Awesome presentation as always 🙌🙌
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, Nancy!! :)
@keithhanssen7413
@keithhanssen7413 Ай бұрын
Another super-thorough review 😊
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, Keith!
@kensegel5909
@kensegel5909 Ай бұрын
Great video, Thank you for reviewing this scope.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you and thanks for stopping by!
@SDNoel73
@SDNoel73 Ай бұрын
Awesome video, as usual! This is making the short list for possible purchase in the future.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Aww, thanks! It’s a wonderful telescope 🔭
@garyb6219
@garyb6219 Ай бұрын
That was really well done. Thanks for your hard work and clear explanation. I liked the USD in red, white and blue, nice touch. Also, I was out of snacks, so I popped open a cold 5% beverage. Snacks are better. Take care.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, Gary! And good eye (or, eyes?) you have there. I was really trying to add a bit of flare with that color choice, lol. Snacks though, are indeed better than having no snacks... in my life experience :) Cheers!
@kyonru
@kyonru Ай бұрын
Well, I now know which telescope I’ll be buying! Thank you so much!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I hope you enjoy it, whichever one you choose ;) Thank you!
@jamiboothe
@jamiboothe Ай бұрын
I don`t need any more telescopes, but you make this one so tempting, from your review.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
It’s just one of those scopes!
@Astro_Shed
@Astro_Shed Ай бұрын
Great review, I too have just reviewed this scope and it’s superb, especially with the new reducer attached, I find it’s very very close in quality to my Esprit 100…👍🏻
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That is most excellent to hear! I have yet to test the reducer. Glad that it’s performing so well!
@jimcarter2092
@jimcarter2092 Ай бұрын
Another great review sarah, i was looking into buying another scope with A little more focal length than my askar Fma180 pro and my redcat 51. And for the price, the askar 71f will be a great Addition. Thanks for the review! 😊
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, Jim! I think you’ll enjoy it ☺️
@thomasphennigan
@thomasphennigan Ай бұрын
“ That would be kind of quantumy “ 😂😂… Great review Sarah !
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
:'D thanks Thomas!
@meibergstrmandersen9181
@meibergstrmandersen9181 Ай бұрын
Nice review and a good deal indeed.. It does however not come near to the Altair Altair 70 EDQR F5 Quad, with S-fpl53 optics. And also given clouds often, you need to squeeze out every hour you can, where the F5 in the Altair is Twice as fast.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks! The Altair is like the Askar 71F if it were built with the reducer and better glass, at higher price point but still decent. Nice!
@tonyrobinson3744
@tonyrobinson3744 Ай бұрын
Great video thats what I'm looking for. That will go great with my new Star Adv GTI.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks! I need to test it on the GTI but specs-wise it seems till do just fine.
@MajesticFlights
@MajesticFlights Ай бұрын
Great review!!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Aww, thanks!
@MajesticFlights
@MajesticFlights Ай бұрын
@@SarahMathsAstro😀👍👍
@lukomatico
@lukomatico Ай бұрын
What a super video Sarah!! - Really well done! :-D Clear skies to you!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Luke, you gem, you! Thank you! I was just finishing your newest galaxy processing video - excellent as always! I hope you and Chloe (and baby) are doing well. Clear skies to you all!
@lukomatico
@lukomatico Ай бұрын
@@SarahMathsAstro Ah you're too kind! Thank you :-D Everything is OK here for us, we just feel a little like we're in the 'waiting room' now as his due-date approaches, haha! Thanks for asking, Hope you and yours are well too!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I’m sure there are lots of emotions about, so exciting though! Can’t wait for an update and hoping all goes well of course 🫶 and thank you, we’re doing well!
@SingleCoilVoodoo
@SingleCoilVoodoo Ай бұрын
This was perfect! I am those first two people wanting to get into astrophotography, and the person who has been relegated to shooting with my dslr and a long zoom! This answered many of my questions…but it has spawned two additional questions: 1. How is shooting with a telescope like this better than shooting with my 600mm zoom? 2. Canned antimatter…if it were to leak out, would the perpetual matter generating material the can is made of…wait, nevermind. 😂
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you!! To your first question, telescopes like these are typically better corrected (flatter fields, corrected for chromatic aberration, etc), which is a must for astrophotography. Obviously some lenses are well corrected but typically very expensive. This is just one reason! But also telescopes like these also come with a lot of the accessories you need to mount the scope to a tracking mount etc. you can certainly purchase those accessories for a lens. 2. 😅
@AstralviewsUK
@AstralviewsUK Ай бұрын
Excellent review, Sarah.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you! :)
@bobdabuilder5713
@bobdabuilder5713 Ай бұрын
Lovely review. I'm adding this to my wish list. ( 15:17 you miss labeled the 1/4" and 3/8" screw holes, I think. 3/8" would be the larger one. ) Doesn't change anything. Just nit picking. 😉
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Lollll thank you! 🤣 great catch!
@PatrickManley
@PatrickManley Ай бұрын
Yeah so if I didn't have a 70mm trip (really a quad after the field flattener...lol), you would have talked me into this. Great review. Great telescope. Enjoy! Also the dino planter is fantastic, and you should provide a link to the can of anti-matter in the details!. Thanks Sarah - great stuff. As someone else already said ANTIMATTER!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, Patrick! Haha, I’ll have to find a link to those both. I got the antimatter from my friend from Meow Wolf Las Vegas. But also… ANTIMATTER! Cheers
@brucecenterwall1270
@brucecenterwall1270 Ай бұрын
As always, a great review. It is nice to know that you can mount a kitty on the handlebar 😄 Is that a moire' pattern at 29:34 ?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, Bruce! Yes, although, I found that the kitty did not take kindly to the handlebar after too long (like, not even a second, ha!). But yes, apparently it's moire. From what Sharpstar is saying. I've never come across it before, or at least if I have, I wasn't being a pixel peeper and didn't come across it. Any other ideas of what it could be?
@brucecenterwall1270
@brucecenterwall1270 21 күн бұрын
Hmmm, did you have any filters touching each other..... or could it be an electronic interference onto your camera sensor ?
@SarahMathsAstro
@SarahMathsAstro 21 күн бұрын
@brucecenterwall1270 no, no filters. Good thinking though
@GodfatherAstro
@GodfatherAstro Ай бұрын
Great review as always!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks so much!!
@MrsBMusic
@MrsBMusic 13 күн бұрын
I’ve been comparing this to zenith star 61…. I have a star adventurer GTi. Would this be too heavy, used with canon 6d and a mini guide scope?
@SarahMathsAstro
@SarahMathsAstro 13 күн бұрын
I think the 71F along with the rest of the gear you mentioned would do just fine on the GTi. I haven't tested for sure, but just specs-wise, I think it will do with proper balancing and polar alignment.
@viewintospace
@viewintospace Ай бұрын
Great review Sarah!!!!! What I‘m curious, thinking about an FRA500 - which is more than double as expensive - do you see any advantage besides that it is a bit faster which would still justify paying so much more?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you, Sascha!! You’re exactly right. I think the focal ratio is the selling point for the FRA500 / the larger objective, and the higher-end finishings of the tube and accessories. With the larger objective and faster focal ratio, it probably made sense to go with a quint design and two ED elements for color correction purposes. Whereas the 71F being a quad and has just the one ED glass. It’s crazy how much glass is!
@danajberry43055
@danajberry43055 Ай бұрын
Hi, @SarahMathsAstro. Thank you for your thoughtful video. Just curious. It looks like you use a Mac with PixInsight. What processor and how much RAM do you recommend? Thanks, again. Keep up the inspirational work!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Hi Dana, thanks for taking the time to stop by and for your kind words. The minimum I believe is 16GB for a 64-bit system, but I would recommend 32GB+ of RAM if you can (with plenty of disk space either locally or on an external SSD). For processors, the M1, 2 work well, but I am currently running on a 2.6 Ghz 6-Core Intel Core i7 and that seems to chug along okay. I'd love to upgrade to the M-series though. Thanks again!
@danajberry43055
@danajberry43055 Ай бұрын
@@SarahMathsAstro thank you for your reply and your inspirational work.
@av-ji9qy
@av-ji9qy Ай бұрын
Ms. Sarah excellent video ....always very through....so at the beginning of the video the scope is mounted on ?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you so much ☺️ I was mounting it to the AM5N. But I’ve also tested it with the AM3 with great results!
@MrKhagol
@MrKhagol Ай бұрын
go go power ranger..woohoo-good to see another ranger fan. 🤗 nice review. it looks like compared to my FRA 300 quintuplet (60mm)-to make it economical-they've really cut corners on side things except tube and lens part. which is surprising in that they can lower down such cost. the flower pattern or the other microlensing pattern was kind of interesting to see-haven't seen that before and didn't know it existed like that if uv/ir isn't used. thanks for pointing that out. p.s. didn't know the cats are willing to go in place for guide scope-I should've tried that with my neighbor's cat that one time..🤣
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Alway an honor to meet another fan! And I think you're spot on about the FRA 300 comparison. With any cat, it depends on how they feel microsecond to microsecond, but they come around eventually :)
@joec4655
@joec4655 Ай бұрын
YAY... ❤ your videos. Well done and informative.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Aww, thank you! ☺️
@stefanschneider3681
@stefanschneider3681 Ай бұрын
1:27 love it 😍! Is this English like 300 years ago? And did you really send it 😉🤣? Got my 71F a few days ago and my first impression is ... WHOW!! For me it replaces a stock telephoto-lens with my Canon 90D on a star tracker (SA GTi), so it was kind of expected it would outperform this one. But this kind of sharpness really blew me away!! Thx for the video.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Haha, probably some time around there, or maybe even before! It's still how I talk to myself sometimes lol. I did not send that though, I should have! but wow!! Congrats on the scope! I'm stoked that you've been having such awesome results with it. Was it weird going from a camera lens to telescope at all in terms of your workflow?
@stefanschneider3681
@stefanschneider3681 Ай бұрын
@@SarahMathsAstro Not really, I have my StarAdventurer for over 2 years and it just blows my mind again and again what is possible with just a camera, a star tracker and some experience 🤩. But I expect the postprocessing to be easier. With camera and lenses there are limitations where I sometimes struggle to find a way around, especially with wide field lenses. But they are great fun anyway! But as you say in the video, this 590 is really a "sweet spot", not too demanding, but still very much "deep sky".
@fltmed
@fltmed Ай бұрын
Where can I purchase my very own can of Antimatter? I'm jealous! Seriously, thank you for the informative video.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Apparently from Meow Wolf! That’s where my friends got it for me :) and thank you!!
@TommyM-j7v
@TommyM-j7v Ай бұрын
Great vid. Could you please post a link to the Galactic Hunter video to correct the micro-lensing affect (flower affect).
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, Tommy! Here is the video link: kzbin.info/www/bejne/j5LNg3acj72Zrbs
@GuLinux
@GuLinux Ай бұрын
"As a user", yeah, that made me chuckle :D
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
:D
@stevenwilliams6258
@stevenwilliams6258 Күн бұрын
Informative video! FRA400 or Askar 71F? On the AM5 mount/tripod. ASI2600MC (Duo?). In the Portland, OR area we probably get 4 clear months a year. Jan/Feb and Aug/Sep. Any other time is raining, overcast or these days, even the summer is smoky. So, I was thinking of the Celestron RASA 8 f/2 but I have read a few comments about quality control that concerns me. Not as flexible as the refractors with an option for a reducer. But the faster scope in my area is appealing. At 17lbs plus other stuff hopefully the AM5 can handle it with some weighting down. I am thinking of moving to Nevada, for retirement (taxes) and clear skies. I would like to see a RASA (8) review by you as you are so thorough.
@SarahMathsAstro
@SarahMathsAstro Күн бұрын
Thanks for your thoughtful comment! In regard to your first question: The FRA400 vs. the 71F - both are great choices. If you're looking for less focal length and don't plan to get a reducer for the 71F, then the FRA400 is the better choice. Although more expensive. Also, if you're looking for faster optics natively, then the FRA400 is the better choice. Both would be suitable for the AM5 and the ASI2600MC Duo, although, if you do go with the Duo, and use a narrowband filter of some kind, hopefully it's one with a wide enough bandpass. Also, you may need some additional adapters to connect the Duo to the FRA400. But a M54 to M48 filter holder/adapter would be a good addition to get. Since you don't have many clear nights, the RASA makes sense. Hopefully Celestron would be willing to work with you if you for whatever reason did receive a unit with issues, but I understand your concerns. For the AM5, the RASA with a reducer and the Duo should work just fine, too. Like you noted, adding additional weight to the accessory carriage would be a good idea and if you wanted, even a counterweight or extra sturdy tripod legs. I would love a RASA, or at least the chance to review one. Hopefully one day I'll get my hands on one. Thanks for stopping by!
@stevenwilliams6258
@stevenwilliams6258 Күн бұрын
I forgot about filter interaction with an integrated guide camera. So, that helps to complete a purchase list.​@@SarahMathsAstro
@SarahMathsAstro
@SarahMathsAstro Күн бұрын
@@stevenwilliams6258 😃
@Astro-Suburbia
@Astro-Suburbia Ай бұрын
According to ZWO the D60 IR cut filter window on the ASI2600mc is a UV/IR cut filter.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Many thanks!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
The unsolved mystery as to the cause continues...
@IrishInsomniac76
@IrishInsomniac76 Ай бұрын
Considering astrophotography as a hobby so I am brand new and have been considering the Dream 3 smart telescope. The 71F looks much more like a telescope but I wonder if the Dream 3 is more beginner friendly. Thoughts?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Hi Ivan, are you referring to the Dwarf 3? If you have minimal or no photography experience and limited/ zero observational astronomy experience, a smart telescope like the Dwarf 3 could be a nice option to start out with before you dive into a camera, telescope, and tracking mount - although you totally can still as that's what I did and many do. I have a video of the Dwarf 2 which functions very similarly to the Dwarf 3: kzbin.info/www/bejne/hny6h6OmbZimjck
@IrishInsomniac76
@IrishInsomniac76 Ай бұрын
Thank you Sarah and you are right I meant the Dwarf 3 (apologies and great assumption btw). My wife is an amateur photographer who has an older Canon 5D Mark ii so maybe that would work. But then I would still need the scope and moving mount so I think as the Dwarf 3 fits on a decent static tripod camera mount that is probably the MVP option for this BA :)
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I like the name "Dream" as well because it does work like dream. But, I would say that the smart telescope will get you a bit more acquainted with night photography and kind of how it works as well as introduce you to raw data/ linear data for processing later on. If/ when you want to upgrade to more advanced equipment, you totally can and you'll some great insight already under your belt. Cheers!
@garyb6219
@garyb6219 Ай бұрын
I have a big question. I'm the proud owner of a Meade LX200 10" SCT purchased in 2001 so it does not have GPS. At this point I'd like to get the ASI533MC Pro & ASIAIR Plus to attach to it. Can I? Will it work with my dinosaur? Also, do I need a guide scope or the AM5 mount? Thanks, I have a large pile of snacks while I await your reply.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Without GPS, I don't think the ASIAir Plus would be able to properly orient itself and the mount. But I am not 100% sure. I would reach out to ZWO to confirm though, because maybe I am incorrect here. And then regarding a guide scope + guide camera for the AM5, guiding would be recommended with most (if not all) harmonic drive mounts. But I suppose if you took short enough exposures it would be fine, but you could still get walking noise in the final stacked master light file from not dithering during the acquisition session (movement of the camera and mount a few pixels between each exposure). Automatic dithering can be enabled if you use a guide scope/ guide camera and have an ASIAir. You could also look into the ASI2600 Duo if you wanted a guide camera built-in. I hope whatever snacks you had were delicious :)
@hangerbird
@hangerbird Ай бұрын
Great review. I was all set to order one, but the weight is too my for my SW Adventurer. I'll have to up grade my tracker before I could get something like this.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Ahh, what mount are you looking into?
@hangerbird
@hangerbird Ай бұрын
@@SarahMathsAstro Either this AM3 or the AM5
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Both great options and suitable for this scope. Let me know when the time nears if you have any questions
@mamertobernal4460
@mamertobernal4460 Ай бұрын
Great review, Question about the camera adaptor in the box. Do you have to specify the lens mount when ordering, ? P.S. Fuji user here (XT4)
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you! Great question - you would need a T-Adapter that would accommodate your specific Fuji camera's lens mount and you would want to make sure that the internal diameter could be threaded to the M48 adapter of the Askar 71F's photographic adapter (the smallest one) with x75 male pitch threads. So in addition to making sure the T-Mount for the camera is made specifically for your camera's lens mount flange, also be sure the T-Mount adapter has an internal diameter of M48 and female threads with x75 pitch. You can Google which T-Adapter to use for your camera and that will get you a good starting point. Just don't get one that's M42 as that will be too small.
@mamertobernal4460
@mamertobernal4460 Ай бұрын
@@SarahMathsAstro Thank you for that :) :)
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
You're welcome!
@davevick1775
@davevick1775 Ай бұрын
17:50 - Actually, the focuser extends the tube closer to 50mm, not 40mm. (Mine measures 48.18mm at full extension). Also, I found I had to loosen the mounting screws on the bottom of the rings and slide the vixen plate as far foreward as I could, otherwise there wasn't enough room between the plate and the focus axle to insert & tighten the focus-lock thumbscrew. Other than that, I extremely-very much like this 'scope a lot; I was working toward a Redcat/Spacecat 71 until I saw this guy at a third of the price and no field flattener needed. So far it's been the best six-hundred bucks I've spent on much of anything in life.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, I think I meant to say that there is 40mm of graduation markings so thank you for adding the 50mm in the comments for clarity. Did you find much need for the focuser thumbscrew? I found it functioned pretty well even without it. Obviously not desired though. I’m glad you’ve been enjoying this scope though!
@davevick1775
@davevick1775 Ай бұрын
I'm shooting with a Lumix S5 mirrorless at the moment, until I can afford to go with a dedicated astro camera - probably an ASI533 of one flavor or another... The S5 is a chunky little beast of a camera, so I put the lock screw in just for safety's sake. I might have gotten away without it, but I've had a fair number of photos ruined (most notably about a third of my Total Eclipse subs, this past April) by lenses that either didn't lock focus or didn't lock focal length, so I tend to shy away from taking chances. You're right, though; the focus rack is very smooth but it's *definitely* not sloppy in the least. Hopefully it stays that way for the life of the telescope.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That makes total sense. Sorry to hear that has happened with other setups especially for the total solar eclipse. But couldnt agree more with you about the 71F’s focuser. For the price, it’s wild.
@bryandraughn9830
@bryandraughn9830 Ай бұрын
Wow! This is great! Thank you!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you!
@penallta16
@penallta16 Ай бұрын
Love watching your videos would this be good on a canon 600d modified camera xx
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Aww, thank you! Yes!! I think so! Just need the t-adapter for your camera to connect to the M48 portion of the Askar 71F’s photographic adapter :)
@kaeseonline
@kaeseonline Ай бұрын
It is basically an TS SDQ71, right? I assume they use the same supplier and re-brand it, Like its done with many other scopes.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
It's very similar. I can't confirm supplier though.
@akschu1
@akschu1 Ай бұрын
Super helpful information. Thanks!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Glad to hear it, thank you!
@BradTheThird
@BradTheThird Ай бұрын
When you're taking photos, is there room to put an eyepiece in between the camera before you attach it? Currently I'm attaching a DSLR to a Barlow lens, which naturally only gives me 2x magnification (It's good for getting a picture of the moon, but the moon's boring once you've got a picture of it) and there is no physical space to get an eyepiece in between the camera and the Barlow lens to increase the magnification. And if I'm being honest, I don't even know if eyepieces and cameras are even compatible. I'm new to this so my knowledge of the equipment is minimal. I recently bought my DSLR (which I'm happy with, I got a picture of the Northern Lights a couple of weeks ago on it, and comet Tsuchinshan-ATLAS). I just don't fancy having to fork out another £300 for a dedicated astronomy camera (and however much this telescope is in Great British Pounds) just so I can get a good picture of Jupiter and Saturn etc.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Great questions! Yes, you can. I have a video on different connection methods for cameras and telescopes here: How to Connect a Camera to a Telescope | Smartphone, DSLR, Mirrorless, Dedicated Astronomy kzbin.info/www/bejne/aZ2QaoCLiZp1jtk
@BradTheThird
@BradTheThird Ай бұрын
@@SarahMathsAstro Yess thanks. What I was describing was the last part of that video ("Eyepiece/ Positive Projection"). It turns out that I need one of those connector tubes. Amazon must be loving me at the minute... I'd had that video recommended to me a few times over the past couple of days but I hadn't watched it. The algorithm knew what I needed before even *I* knew.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I’m glad you found the right connection method! YT knows :)
@tomc256
@tomc256 Ай бұрын
Hmmm... cat, quantum box... Schrödinger’s cat experiment? Seriously, nice review, I want one.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Pretty much all the essentials :)
@dmintz88
@dmintz88 Ай бұрын
Nice review, Sarah! I sincerely hope that's the exact letter you sent to Sharpstar! 😂
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks, Dan! It’s the letter that should’ve been sent 😂
@bigguix
@bigguix Ай бұрын
the voyager plaque ! i have some of the imagery of them as tattoos !
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That is amazing!
@Fender90
@Fender90 Ай бұрын
Hail, Lady Sarah, astrophotographer and teacher of the night sky. Thy missive to the Sharpstar company was most mirthful, and I did laugh heartily. I give thee thanks.🤣🤣
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I prithee, accept mine humble thanks.
@Fender90
@Fender90 Ай бұрын
@@SarahMathsAstro 🤣
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
😬
@-esseff-
@-esseff- Ай бұрын
I have a question: this telescope has a focal length of 490mm @ f/6.9... yet my wildlife lens has a focal length 600mm @ f/6.3... which to my mind means the lens (Sigma 150-600 Sport) is better. Or am I missing something? Is a telescope better for this kind of photography simply because it's a telescope?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That’s a great question! Also, that’s a great lens (as you already know). Telescopes like these tend to be a bit better corrected particularly for astrophotography than *most* camera lenses (field flatness, color, etc). Many telescopes also come with a lot of the accessories you would need, right out of the box to mount it to a tracking mount, and many also come with accessories to place mount guide scopes to, a mini PC to control image acquisition, among other types of common astrophotography imaging accessories. You, of course, can purchase all of those components for a camera lens. With other types of telescope designs like Newtonians, the appeal with those over a lens is that they give you larger apertures and more reach at a much lower price point; the drawback being that they’re bulkier and sometimes require more tinkering to image with right out of the gate (not always).
@-esseff-
@-esseff- Ай бұрын
@@SarahMathsAstro Asked and answered. Many thanks. I don't really do much of this sort of photography (the occasional moonshot) but I keep playing with the idea of adding a telescope to my arsenal. My take away from your response is that unless I'm getting a focal length of 1000+mm from a telescope it's not really worth it for my usage.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Yeah, probably not!
@NASA2officials
@NASA2officials Ай бұрын
I'm really new to Astrophotography and looking at some telescope reviews on this channel, but I'm happy that I was subscribed! This really his a good scope for astrophotography but I'm still a brokie and I only have 1 70/700 Refractor!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
It’s good that you’re doing your research!
@NASA2officials
@NASA2officials Ай бұрын
@@SarahMathsAstro Aww, thx! Also keep up the Good Editing and Fill us with all your Astronomy related Content! Also have you, by any chance, reviewed the Meade NG-70SM Altazimuth Refractor Telescope before!?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@NASA2officials thank you!! I will! And I haven’t reviewed that scope!
@NASA2officials
@NASA2officials Ай бұрын
@@SarahMathsAstro No problem. Oh also, the Meade NG-70SM Telescope is the one I am currently using!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@NASA2officials very nice. Are you enjoying?
@PiDsPagePrototypes
@PiDsPagePrototypes 23 күн бұрын
4:28 - Focal Reducers DON'T make a lens 'wider', regardless of the type of lens, be it camera or telescope. They recover part of the image circle that is cropped out by the size of the sensor, but the angle of view of the lens Does Not Change. The only way the angle of view changes, is if you are using a Zoom lens. If I take a 50mm full frame lens and put it on an APSc sensor, it may behave like an 85mm, but it doesn't magically become a 40mm if I add a focal reducer. It's a 50mm, cropped to 85mm, and then recovered to a maximum of 50mm. It never becomes Wider. And it's not an 85 that suddenly becomes a 50. Saying they become wider is a bad habit many photographers and videographers have picked up and seem to want to continue to be wrong about.
@SarahMathsAstro
@SarahMathsAstro 23 күн бұрын
Thank you!
@bakerfx4968
@bakerfx4968 Ай бұрын
This is almost exactly what I’m looking for for my first actual telescope that’s not a portrait lens lol
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That's awesome lol I think you would dig this then
@trisca139
@trisca139 Ай бұрын
Hello Sarah, given the weigth of this telescope it sould it seems perfect for the mount ZWO AM3. do you confirm it?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Hello there, as indeed! It works just fine with the ZWO AM3!
@GlennZucman
@GlennZucman 27 күн бұрын
Astro-noob here what's the difference between a telescope like this and a 490mm photography lens? Does it have qualities that my Sony 200-600mm lens does not? The telescope looks very exciting and I'd like to give it a try. I'd use a full frame Sony a7c that was recently Astro-Modified. I have an old, heavy Gitzo tripod that I think would be fine with the weight. I'd need an equatorial mount - is there something I could use that doesn't have a higher price tag than this lens? Thanks for your informative and inspiring video!
@SarahMathsAstro
@SarahMathsAstro 19 күн бұрын
Hey Glenn! Apologies for my delayed response. I have been slowly getting caught up with messages/ comments since being out of town for a workshop. Thanks for the great question - the main difference would be the level of correction at the price point between a telescope like this and a comparable focal length camera lens. For $599, it's very well corrected in terms of color (no chromatic aberration) and a flat field of view (no stretched out stars in the corners) - all very important aspects when it comes to deep space astrophotography. The other difference would be that the telescope comes configured with the dovetail bar and some of the other accessories that makes mounting it to an equatorial mount seamless and mounting accessories like a guide scope and guide camera to the telescope quite easy. You can certainly purchase a dovetail for a camera lens as well as the other accessories I mentioned. In terms of a mount, you could look into the Sky-Watcher Star Adventurer GTi GoTo mount. It's around the same pricetag and a secondhand one could probably get you right at the same price point as the scope. If you purchase the bundle where the mount head and the tripod legs come together, I think that setup would be suitable for this telescope and a camera. I hope this helps and thanks sos much again for the great question and taking the time to stop by! All the best, Sarah
@GlennZucman
@GlennZucman 19 күн бұрын
@@SarahMathsAstro Thanks so much! The Star Adventurer GTi GoTo sounds more my speed (price range!) No doubt the AM3 & AM5 are better, but I was a little price-shocked at what it would cost to get this $599 telescope mounted! Perhaps I should think in terms of the mount as a key element that costs/does the most and then hang other pieces around. No doubt "the sky's the limit" on what you can spend (sorry! ) I don't see myself taking any world class images, I'm more of a backpacker who takes a few star photos when I wake up in the middle of the night. I've mostly done that with my Sony A7c, a compact lens like a 24mm f2.8, and a very tiny 8.5 oz Leofoto tripod. I'll probably never take more than that when all the weight is on my back for days at a time, but I do the occasional car camping trip, and now that the Northern Hemisphere days are so short, it might be fun to play with something like the Askar 71F and the GTi GoTo. The GTi price is a bit less shocking. Telescope, mount, accessories, tax, and shipping might all come in around $1500, which is survivable. BTW, do you have an affiliate link for the GTi GoTo? I'll report back if I capture anything more exciting than Elon Musk's satellites!
@SarahMathsAstro
@SarahMathsAstro 19 күн бұрын
Of course! And I do think you're on the right track with considering the mount as the number one component for building a kit. I think if you're wanting to stay in this price range and payload capacity, then the Star Adventurer GTi is still a great choice and you can always sell it and upgrade later if you want to get a larger mount. But from the sounds of it, I think it's going to be a perfect addition to your photography gear and help you accomplish your photography goals most importantly. Especially for car camping, this mount setup is really nice. It is wild how it all adds up rather quickly though. But I think with this mount you'll be set for a long time to come! If you do find you need more support for longer exposures, you could then look into a guide camera and guide scope and an ASIAir to get everything connected and running. But in the mean time, shorter exposures of around 2 minutes should be more than do-able I think. Also, here is a link to the GTi (affiliate) no pressure to use it either but also very much appreciated!! amzn.to/4er1j4n let me know if you have any other questions - email or comment and I will be happy to help! p.s. love your emojis!!
@SarahMathsAstro
@SarahMathsAstro 19 күн бұрын
Oh!! And be sure to get a T-Mount adapter for your camera model too to connect to the telescope. It should have a telescope-facing diameter of 48mm or M48! The camera facing side must match your camera's lens mount type :D
@GlennZucman
@GlennZucman 19 күн бұрын
@@SarahMathsAstro OIC... more noob questions... is a "Tracking Mount" different than an "Equatorial Mount?" I thought with "a mount" I could take images of any time duration -- not so? Two minutes might actually be enough anyway - when I do long exposures the Sony camera processes the image for the same amount of time as the exposure was, so a 10 minute exposure would have 10 minutes of processing so I'd be sitting in the cold and dark for 20 minutes! I've done some two minute exposures and even four minutes is a long time sitting in the night -- maybe I should drag my quilt & pad out of the tent and stargaze while I'm waiting! Anyway, I'm unclear if there's more than one kind or axis of tracking - what happens after two minutes with a mount like the GTi? And does a mount like the AM5 do something different? Thanks so much for all the info!
@SonnyPruitt-q1s
@SonnyPruitt-q1s Ай бұрын
Can you recommend a ZWO camera under $500 that would work well with the 71F?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I think the ASI585MC would be the closest to the $500 mark. It's $599 though. It would give you a much more zoomed in field of view.
@SonnyPruitt-q1s
@SonnyPruitt-q1s Ай бұрын
@@SarahMathsAstro Thank you!
@eottoe2001
@eottoe2001 Ай бұрын
TY. Thanks for explaining this as if people don't have a background because I sure don't. Could you talk about mounts, please?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thanks for your feedback on that! I’m glad the approach was helpful. Yes, a good middle of the road mount for this would be something like the ZWO AM3. Or did you mean talk about mounts in a separate video more generally?
@eottoe2001
@eottoe2001 Ай бұрын
@@SarahMathsAstro thanks for the info. A separate video would be nice and see if you get the watches on it. On mounts, there are two things that aren't covered, like what to buy, and how to use them properly. It took me a while to figure out how to place the tripod legs, aim to true north based on my latitude, etc.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@eottoe2001 great to know, thanks for this. I’ll add it to my list of video ideas. I’m sure many people have the same questions.
@craigharpel295
@craigharpel295 Ай бұрын
Any feel for whether this would pair ok with a 2600 Duo as far as guiding?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Nico Carver, from Nebula Photos used the 2600 Duo with this telescope and it worked just fine. There was no filter in the imaging train, however. I would use a wide dual bandpass narrowband filter if you were thinking of using something like that.
@craigharpel295
@craigharpel295 Ай бұрын
@@SarahMathsAstro Thanks Sarah! I'll check out Nico's vid too!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
You bet!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I meant to include the video link to Nico's video. My apologies. Here it is: kzbin.info/www/bejne/l6S7fqqmbt2gpNksi=_vHv_eQ7VkCYcAo5 - it's for the 2600 Air, but the guide camera is still built-in to that one too.
@gboot2338
@gboot2338 Ай бұрын
Im not really into this scope but....I love the Antimatter paint!!!😂😂😂
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I'm glad!! On the back of the can, it reads "Measuring Instructions: Never use a wet spoon" lol
@gboot2338
@gboot2338 Ай бұрын
@@SarahMathsAstro it also says...don't apply in small amounts! Use a very, very BIG brush!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
BIG brush 😂
@MikinessAnalog
@MikinessAnalog Ай бұрын
Do you have a video about star trackers for time lapse?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
No, not about time lapses, but I do have one with star trackers for long exposures. But, here's a video from Chasing Luminance's KZbin channel that will hopefully be helpful: kzbin.info/www/bejne/b53Ig4WffsiqnNU
@ronconovoa7566
@ronconovoa7566 Ай бұрын
great information thank you so much
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you for stopping by!
@cwl1354
@cwl1354 Ай бұрын
Would you recommend this telescope for closeup moon photography?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Maybe with a Barlow or PowerMate.
@cwl1354
@cwl1354 Ай бұрын
@@SarahMathsAstro Thank you.
@BlkInc1
@BlkInc1 17 күн бұрын
Is the 55mm spacer just for Canon, what about Nikon?
@SarahMathsAstro
@SarahMathsAstro 17 күн бұрын
No, it’s for any DSLR or mirrorless camera. It’s the standard flange focal distance to the camera sensor. The t-adapter you use for your camera needs to help you achieve 55mm from the back of the scope to the sensor so depending how far the sensor sits back, that impacts how big of an adapter you need. DSLRs need smaller t ring adapters since the sensor sits further back while Mirrorless cameras need a larger t ring adapter since the sensor sits closer to the flange. The lens mount flange is proprietary for each camera brand and sometimes model so you have to be sure that the t ring adapter can be mounter to your camera and allow you to reach focus with the correct length as mentioned before. It also needs to have an internal diameter large enough to fit the photographic adapter’s 48mm threads with a pitch of .75
@TimAZ-ih7yb
@TimAZ-ih7yb 25 күн бұрын
Question for owners out there, how does this compare optically to the TV-85? How stable is focus as the temperature drops?
@SarahMathsAstro
@SarahMathsAstro 25 күн бұрын
Not sure about the TV-85 comparison other than similar specs but the focuser of the 71F is fairly stable. Not much change.
@joeponthetrails
@joeponthetrails 27 күн бұрын
Do you know if it will reach focus with a 2inch 90 degrees mirror for visual use?
@SarahMathsAstro
@SarahMathsAstro 26 күн бұрын
It should!
@ronconovoa7566
@ronconovoa7566 Ай бұрын
do i need a goos tripod?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Yes, and tracking mount if you're going to be using this for nighttime astrophotography. But if using it for daytime observing of birds, then a standard tripod for the telescope's weight capacity should do.
@kevinashley478
@kevinashley478 Ай бұрын
I was looking at this or the Apertura 60mm... I went for the Apertura, only because i could get better framing with 360 vs 490 focal length, combined with my APS-C Canon T3i.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That makes sense! Would you have considered it if the reducer for the 71F had been released earlier? Also, the Apertura 60mm is a great scope, I was just curious! I hope you’ve been enjoying it.
@kevinashley478
@kevinashley478 Ай бұрын
@@SarahMathsAstro probably. I really liked the price point for it being a quad. But like i said, with a crop sensor, the focal length was just too zoomed in. I found a guy on ebay that sold me his Apertura 60mm F6 with the field flattener, the 0.8x flattener reducer, WO dovetail with rings, and a CLS filter for $650. As for the Apertura, it is a great little scope. I had trouble balancing it on the Star Adventurer 2i until I bought a second counter weight. Now, my only issue is just figuring out a way to locate targets. I have had an issue with star trailing, but I think that problem has more to do with my balancing and set up of the mount, than it does with the scope. But I did manage to get my best image yet of the andromeda galaxy. Only an hour of data, and i have to figure out what to do about an issue with what looks like banding, but its more like a checkerboard pattern. I used darks and biases, but maybe i need flats too. I may get the 71F for my next scope, but right now, i am saving for my next purchase - The HEQ5
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That's quite the bargain. That's also impressive you've been able to use it on a star tracker. I would think the focal length would be somewhat long for a tracker but I suppose with perfect polar alignment, no wind, the right balance, and short enough exposures that you can make it work - which sounds like you have been. I'm glad you got the extra counterweight. Locating objects manually is certainly a labor of love. Regarding the banding, since you're using darks and biases, then the banding you're seeing may be walking noise. If you start dithering in between exposures (moving the camera/ mount a few pixels) that should take care of it. You can do this manually, although not too fun, or you can have it automatically done if you add a guide scope, guide camera, and field laptop or mini PC to your setup to run guiding software and enable dithering that way. The Star Adventure 2i does have a port to guide with. Although with the additionally weight from the guide camera, guide scope, and mount brackets for the guide scope, it may be too much weight. But it's worth looking into, particularly for when you get the HEQ5. Another thing you can try is to remove the banding in post. Some softwares like PixInsight or Siril can help with it if it's being caused by the DSLR itself.
@kevinashley478
@kevinashley478 Ай бұрын
@@SarahMathsAstro Thanks for the tips! Yeah, i am definitely NOT doing 2-3 minute subs. If I get more than 30 seconds, I am happy. As for the banding, thats just what I call it because I dont know what else to call it. It is not actual bands across the image. Its more like a checkerboard pattern. As long as I dont go too bright, it is minimally noticeable. It is especially noticeable though, whenever i remove the stars and try to just stretch nebulosity. It is an old camera, a T3i, and it was Ha modded, so maybe something got messed up. Eventually i will get a dedicated cooled astro camera. Currently I am looking at the 533mc or the 585mc...no mono for me, lol. I have heard of dithering, and i know that the star adventurer app will let you dither, but i havent had the guts to try that yet.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@kevinashley478 yeah my guess is that it’s walking noise then due to the checker board look. Dithering should help!
@DB-be9wy
@DB-be9wy Ай бұрын
And I thought the at72ed2 was the best bang for the buck. Almost makes me feel bad that I bought that over this scope. Almost, because I really do love my at72ed2.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I think it’s still up there as one of the best scopes for the money!
@Crimsonyte21
@Crimsonyte21 Ай бұрын
Im an astronomy noob, so pardon me, but is this an apochromatic refractor? Why does everyone suggest I get an apochromatic?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
No worries at all! An apochromatic refractor means the telescope has been very well corrected for chromatic aberration (CA) or color fringing. CA or fringing looks like separation of colors around areas of high contrast like stars where you might see purple and green or red and yellow in non-corrected refracts. So yes, this is an apochromat. We dont want this in astro images, we want good color correction for color accuracy. There are doublet (two lenses with extra low dispersion glass), triplet refractors (three glass elements usually with one or two extra low dispersion glass) quad refractors (four lenses), and quints (five lenses) refractors that can also be consider apochromats if they have the right amount of lenses/ lens spacing/ lens shapes/ and type of lenses (extra low dispersion etc).
@Crimsonyte21
@Crimsonyte21 Ай бұрын
@SarahMathsAstro oh my god! Thank you for the in depth explanation! 🙏 you're awesome!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@Crimsonyte21 of course! Happy to help. Thanks for the great question and thanks for taking the time to ask and stop by :)
@rakitakhan
@rakitakhan Ай бұрын
Wow ! There are pretty astrogeeks ! I wish I had started 40 yrs ago.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
We are all living inside these fragile human meat suits
@rakitakhan
@rakitakhan Ай бұрын
@@SarahMathsAstro Indeed.
@MilosBencic
@MilosBencic Ай бұрын
Every time all very beautiful and perfect.❤
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you! 🫶
@astrojourneyuk
@astrojourneyuk Ай бұрын
Love the letter 😂 and the review.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Oh thanks so much!! I hope you’ve been well! ☺️
@astrojourneyuk
@astrojourneyuk Ай бұрын
@@SarahMathsAstro I’m good thanks. It’s been a long time since I was properly out under the night sky but I’m hoping this winter will change that.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
I’m glad you’ve been well! I hope you’re able to get out there soon though :) really great hearing from you
@thepathnotfound
@thepathnotfound 28 күн бұрын
Very nice review thx!
@SarahMathsAstro
@SarahMathsAstro 22 күн бұрын
Thank you!
@t_mcb_1342
@t_mcb_1342 Ай бұрын
i love your videos... you know telescopes and the technology of astrophotography well... i may have asked you this before... nevertheless... what do you see yourself doing in 5 years?
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Thank you! I would love to continue doing astrophotography and astronomy education and outreach!
@astrophoto_andy3335
@astrophoto_andy3335 Ай бұрын
Thanks Samantha for a great review! Please don't open that antimatter container though 🙂
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
It’s tempting
@ronconovoa7566
@ronconovoa7566 Ай бұрын
great info i do thsnk you i am new in to this great hobbie
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Congrats! I hope you've been enjoying astro. I'm also glad this video was helpful. Cheers
@Mickken
@Mickken 17 күн бұрын
I think you have a course or class? 🤔
@SarahMathsAstro
@SarahMathsAstro 17 күн бұрын
I do in-person astrophotography workshops and I also do virtual 1-on-1 consulting on a range of topics :)
@walterwadlow9438
@walterwadlow9438 Ай бұрын
Thanks!
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Wow! Thank you so much for the generous gift, Walter!
@HiddenPalm
@HiddenPalm Ай бұрын
Your head being cut off in the whole video kept me thinking part of the video was scrolled up and not fully showing. Since I'm stubborn, I kept forgetting and scrolling up to fix the video.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
Oh dang, I'm sorry! Thanks for letting me know! The room I generally film reviews in is pretty small so I have to use a camera and lens combo that doesn't get the rest of the room but also includes the table (from the front) so you can see what's on it.
@HiddenPalm
@HiddenPalm Ай бұрын
@@SarahMathsAstro Dont sweat it. I still subbed.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
@HiddenPalm thanks for your support.
@DanWipper
@DanWipper Ай бұрын
The least expensive scope to start with is a friends scope, just like boating. So if you want you can come over and share yours and show me the ropes.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
That is true!
@DanWipper
@DanWipper Ай бұрын
@@SarahMathsAstro Great, i'm 35 miles N/W of Chicago, bortal 5, when can you make it over? 😎😉
@DanWipper
@DanWipper Ай бұрын
@@SarahMathsAstro Wow, that scope is really a great deal. But, I know that's a trap 700.00 plus,,, 10k for the mount, cameras, filters, second scope,,,,. 30k to build a mobile observatory, 10k to travel. Could utube videos pay for it? I really need a friend, lol.
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
it's a bit far haha
@SarahMathsAstro
@SarahMathsAstro Ай бұрын
It's a slippery slope for sure. And KZbin doesn't pay what you think lol or at least in this niche it doesn't.
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