Does the 2600MC DUO Guide? I found the answer.

I have not tested the DUO on three scopes and with this much experience with it I feel confident now that I can make recommendations. Yes I do recommend the DUO for those that want or need a OSC. It really does make the entire astrophotography process easier. Furthermore the most asked question. Does it work, and with every scenario I have tried it does in fact work. Passes with flying colors really. The new 220mm guid sensor is in is amazing. I have a serrate Mini 222MM to that I will review separately soon.
The amp free sensors in the DUO are also a blessing. Making stacking both with and without calibration easy. My only reservation is that it is a OSC. Having used Mono cameras for a long time and since stacking with ASTAP makes the difference stacking complexity minimal if not non existent.
Will this camera change the industry? I think it will. I have sorta already said that in other videos so I did not put it in this one.
Here is an affiliated link where you can buy astronomy gear and support my channel.
www.astrogear.net/?ref=Narrow...

[@saxyjon]

You're our hero Ben... I'm in awe that you're still so dedicate and passionate doing these tests and reviews while going through your chemo treatment... My thoughts had been with you and your family. Get well soon Ben!🖖

[@mikelockwood2104]

I second that comment - the Community is fortunate to have The Narrowband Channel

[@TheNarrowbandChannel]

Thank you Jon. Ya I was planing on doing this video almost two weeks ago but have been to sick to do it. Finally had a good night and felt well enough to pick up the 122mm. Talking and breathing has been getting easier at least.

[@TheNarrowbandChannel]

Thank you Mike you are to kind.

[@DaveAndrus]

@@TheNarrowbandChannel Hang in there! I survived stage 4 colon cancer, and my last chemo was ten years ago. I expect to watch your great videos ten years from now as well!!

[@astrobath]

Thank you very much for the review! It replies to all possible questions one may have. I was hesitating whether to buy this or not - now I will definitely do that!

[@gazza9839]

Looks very interesting, good to see you looking a bit better Ben, sending positive vibes your way 🤞

[@TheNarrowbandChannel]

Thank you 🙌 ya this was done at my peak between chemo treatments. I tried to get some sun to cause I was getting really pale. You need vitamin K and D.

[@englishfires6728]

Great review, thanks for your effort. I have it on pre-order since it was announced. Looking forward to seeing what you do with it in the long run. Love your videos because there is always something practical to learn. Keep 'em comming. 👍

[@TheNarrowbandChannel]

Awesome, thank you! I try to insert tidbits of knowledge where I can.

[@amp2amp800]

Another great review. Thanks for setting lingering doubts to rest!

[@TheNarrowbandChannel]

Any time!

[@aw7425]

An excellent detailed analysis and review our Astro friend. Blessings to you and your family and clear skies forever and a day. 💕💕🙏🙏

[@TheNarrowbandChannel]

Same to you!

[@stevengrunfeld5627]

Excellent in-depth presentation.

[@TheNarrowbandChannel]

Glad it was helpful!

[@antcorke4485]

Another excellent, lucid video. Thankyou.

[@TheNarrowbandChannel]

Glad you enjoyed it

[@AstraPharma-Arabic]

This is what we need to make up our mind up on this camera, thank you very much 🌹

[@TheNarrowbandChannel]

You’re welcome 😊

[@aa.astro01]

Another great video man! Glad to see your hanging in there 💪🏻

[@TheNarrowbandChannel]

Always!

[@GarnettLeary]

Comprehensive thank you. This was the information I was wanting for myself. Excellent video.

[@TheNarrowbandChannel]

Glad it was helpful! No need for fluff in a video like this when there is this much technical stuff to go over.

[@smatruk]

One of your best videos, thank you.

[@TheNarrowbandChannel]

Wow, thank you!

[@astrochumak]

Lots of great info! Thanks!

[@TheNarrowbandChannel]

Our pleasure!

[@lampyman101]

Love your videos man, kinda jealous of the wonderful toys you get to play with but it's cool to see this stuff being tried out and I love your enthusiasm for this wonderful hobby.

[@TheNarrowbandChannel]

Glad you like them! I do like experimenting too.

[@anthonygraham6449]

Nicely done!!

[@TheNarrowbandChannel]

Thanks!

[@fennellrob]

Good video. Thanks for sharing.

[@TheNarrowbandChannel]

Thanks for watching!

[@efx245precor3]

Good luck to you Ben get well

[@TheNarrowbandChannel]

Thank you. Last week was a good week for me.

[@TheOriginalTommo]

First video of yours I have watched. Very thorough and informative thank you. I'm a lazy OSC user but having watched this I am tempted to buy the 2600mm DUO if and when it arrives. Interesting times 🙂

[@TheNarrowbandChannel]

Glad it was helpful!

[@WilliFromEarth]

Excellent review. Thank you. Glad to hear that the rooster is still around!

[@TheNarrowbandChannel]

You bet! He was pretty traumatized though by coons

[@WilliFromEarth]

@@TheNarrowbandChannel Poor thing …

[@ilciauscolodicanguro2756]

Thanks mate for your videos, you are a champ!! FYI I had fan related issues with my asi 533 since off the box. I tried to replace the fan at first but didn’t solve the problem, zwo suggested me to put an extra set of orings to mitigate the vibrations but I finally solved installing a noctua fan with its rubber feet and now works like a charm. I guess that’s why zwo upgraded their fan holding system.

[@TheNarrowbandChannel]

Glad it helped

[@sreeshab4093]

what a class presentation. u r an asset to our fraternity Ben. keep em coming.

[@TheNarrowbandChannel]

Thanks, will do! Always tried to be a good frat boy in college too. In a civilized way haha.

[@sreeshab4093]

@@TheNarrowbandChannel buddy, need a help. I have a C Edge HD 8". want to know if it would work well with 2600MC Duo? Would there be any challenges of guiding? Would there be enough room for the light to focus? Please advise.

[@sreeshab4093]

​@@TheNarrowbandChannel Hey Ben, I need some help. I have an Edge 8 and use 0.7x Reducer withy Duo. I have tried imaging galaxies from B5 skies without filter. I use ASI AIR Plus for guiding. I am struggling for Duo to guide. I hardly get one or two stars, and that too blurry, and loses the guide star frequently. I am not even able to calibrate most times because not more than 1-2 guide stars are there and very fuzzy. I have pinpoint focus on the main camera. Then I turn the fine focus of Duo, but I don't see much difference. Infact the stars wobble a lot when I turn the knob. My main challenge is I do not get more than 1-2 guide stars, and second challenge not a good focus. It is very fuzzy and dull. I tried increasing calibration / guiding exposure no luck. I tried increasing Gain, no luck. Sometimes it is barely one star and fuzzy. The sky conditions were clear. The galaxies I tried were Whirlpool, Sunflower, Cigar and Bodes. And it did not improve anything. Am I missing something. Please advise.

[@MrDrzhor]

All the best bro...🍀

[@TheNarrowbandChannel]

🤞

[@m1thumb]

I really like the idea of this for SCTs. I'll be checking out the mono for sure.

[@TheNarrowbandChannel]

Hope we do not have to wait too long.

[@StarlancerAstro]

Yup, I'd be in for a mono version but let me just say, your cable management is always perfect, I need to improve mine!

[@TheNarrowbandChannel]

I need to do another cable management video. It's something that takes time but it's really worth it. Once you build a wiring harness for each scope it makes shaping parts around very easy and fast.

[@mikelockwood2104]

excellent information - thank you

[@TheNarrowbandChannel]

Glad it was helpful!

[@mikelockwood2104]

@@TheNarrowbandChannel - you haven't skipped a beat. Keep 'em coming 🤜🤛

[@luboinchina3013]

Man, after you get better, they should send you to a round trip around the Moon, because you TOTALLY DESERVE IT. Great video👍

[@TheNarrowbandChannel]

That would be cool! I would take them up on that.

[@mrdjango2171]

Thanks for a beautiful review again 🥰👍🥰 Sending hugs and keep on fighting 💪💪👍💪💪 Grtz from Belgium 🇧🇪

[@TheNarrowbandChannel]

Thank you so much 🤗

[@guyjordan8201]

A lot of useful information. I love that you don’t downgrade the camera just because one shot color is not your bag. Appreciating things for what they are is unfortunately rare. Looks like it might be a good solution for someone without time to stack monos.

[@TheNarrowbandChannel]

Ya I hate over prejudices but sometimes find myself doing it. Alway trying to keep that in check.

[@TheGoKidd]

@@TheNarrowbandChannel ahh ... keeping an open mind, even though you're narrowband. Haa! :-)

[@LogansAstro]

Great video and excellent description about how the mono version would work. I would definitely be interested in getting a mono duo version if it materializes.

[@TheNarrowbandChannel]

It will happen. Just have to see when.

[@deep_space_dave]

Thanks for this excellent and honest review! I totally agree with you about mono vs OSC now that I have a QHY600M, the clarity and resolution is mind blowing! The DUO is an interesting concept but their are light guidescopes so I agree with you maybe it's a good camera for long FL so you don't need a OAG. I can actually see this on a setup with something like the Askar ACL200 and pair that with the ZWO AM3 and you have the perfect grab and go rig 🙂 Stay strong mate and Clear Skies!

[@TheNarrowbandChannel]

Glad it was helpful! Mono all the way! :)

[@amp2amp800]

Yes, @deep_space_dave I plan for another year with OSC and I have one on order for a new grab and go rig: 2600duo, FF80, AM3, TC40, ASIAir Mini. Expect this all to come together over the next couple of months as the factory deliveries ramp up. It'll be a convenient addition and/or alternative to my 130APO that will bring the wide field targets on stream for me. Can hardly wait!

[@GrundleStiltSkin]

fan vibrations were messing with LONG focal lengths 2032 and higher, i had them on a risingcam 571 with edge hd 8 thanks for the video! very informative

[@TheNarrowbandChannel]

Glad it helped!

[@abhisheknamdeo]

looks like they re launching 2600 MM duo. Will wait for your review.

[@TheNarrowbandChannel]

Yes i saw that. I am actually not sure i will review it though.

[@meibergstrmandersen9181]

Cool Ben, good review and experiences you share. i am about to buy my first camera and start the astrophotography world. I am a kind if "ease of use" guy, so everything than can be automated should be done. Your videos come in handy :-)

[@TheNarrowbandChannel]

Thank you I am glad I can help get you and others into the hobby.

[@andreguimaraes96]

👏🏼👏🏼👏🏼👏🏼👌🏼👌🏼👌🏼👏🏼 awesome, just awesome video 🖖🏼

[@TheNarrowbandChannel]

Glad you liked it!!

[@AstroSoundscape]

I hear you with making Mountains Ben 😂 sometimes my jaw drops at what people complain about or rather "Create" to complain about.

[@TheNarrowbandChannel]

Times never change some people right.

[@alcosound]

Very interesting video. It seems that the SVBONY 122mm scope is really nice...

[@TheNarrowbandChannel]

It is!

[@alcosound]

@@TheNarrowbandChannel it seems that ZWO are preparing a mono version of this camera (and an ASIair hybrid as well). I wonder if these DUO models could work with a C9.25 and a Skymax 180, or am I absolutely having to get an OAG for these?

[@Zircon_215]

A great video. One of my rigs is the Orion 130mm ED triplet (f 7.0) with the .8 reducer/flattener … on a Celestron CGX-L mount and I was wondering if the camera would perform well with it. I think you’ve definitely answer that question. Thanks.

[@AstrophotographyUnderMSSkies]

Very technical and in depth review! Good to see you get some strength back!! For your aperture mask adapters, are you using an available online file for printing?

[@TheNarrowbandChannel]

I designed and printed each. It would probably take more time to find them then for me to draw up and print. Plus i put the f number on-each.

[@matheusmartignago3824]

Very nice images my friend. I waiting for the sv550 122ed planetary images, pushing the ota to the limit on F35.

[@TheNarrowbandChannel]

You and me both! With my Barlow i can do f14

[@YASAJTV]

It has been a month now since you made this video. Do you still recommend this camera AND will the autoguiding work with Nexstar 8SE F10 and this camera do you recommend? (I am actuall in the market for new camera in this price range)

[@TheNarrowbandChannel]

First I still love this system. Still using it too. The scope though you mention might be a stretch for it. Really it is slow has a small image circle. To me it sounds like a gamble. If you are shooting without filters though it should do the trick. Really though the scope you have would be better with a smaller sensor like the 533 or 294.

[@quake3007]

Do you think it’s a good option for those who have larger scopes? I have a 9.25 and had to upgrade my OAG to OAG-L and ASI174mm-mini to get tracking working properly but it’s still not perfect. I want to upgrade my 1600mm-pro to a 2600MC-pro and now I am considering whether the Duo option will be suited and I can get rid of the OAG-L + 174mm altogether and offset the cost towards the 2600MC-Duo?

[@TheNarrowbandChannel]

I never liked the 174mm. It's larger than the image circle size of the OAG-L and so there are a lot of waisted pixels. Plus OAG is just plain hard. I know because I have done it. I switched back to using a second scope for guiding and with the exception of the DUO have never looked back. The 9.25 should work I know it has a larger image circle and other report success with it.

[@whatmattersmost6725]

Thank you Ben, " I was wrong!" question since you using a 16.5mm & 21mm tubes on the back of the SVBONY 0.8 reducer for backfocus, are the far edges sharp, meaning the backfocus is correct at 55mm?

[@TheNarrowbandChannel]

Its cool. So yes with the 16.5,21 and the cameras 17.5 built in that totals the 55mm of backfocus that you need. The reducer comes with a 16.5mm step down ring pre installed and that you do not count because it is technically part of the reducer.

[@lavers_1]

Nice vid, very informative!. How much counter weight do you have on you Newtonian setup?

[@TheNarrowbandChannel]

Its a 5.5lb weight. I can use two but put it farther up the shaft for that.

[@andrevanzegveld]

With sub-second exposures for the guiding, you are correcting against the seeing. Guiding is better with 5 seconds exposures.

[@TheNarrowbandChannel]

With multi star guiding that is less of a thing. But you do have a good point.

[@MrGuilletv]

Great video! The duo system works with the svbony sv503 102 mm imaging circle??

[@TheNarrowbandChannel]

It should, though it has a smaller image circle. Stars might be a little distorted on APSC edges. I know there will be vignetting but its a faster f5.6

[@davidalbert9387]

Would you recommend this camera for a first time dedicated astro camera on a Tele Vue 85 on an AM5 mount?

[@TheNarrowbandChannel]

What speed is the Tele Vie 85? If under f7 I would probably not.

[@realmcerono]

Fan Vibrations come only into play at focal lenghts 2000+mm - then they are a fact with ZWO cams.

[@TheNarrowbandChannel]

That is a common sort of misconception. Really its weight/focal lenth ratio that would matter. I have tested at 3980mm fl. No fan issues. As the weight of the scope relative to its focal length then the scope dampens out vibrations. But really just replace the fan. Its like if you have a flat tire with a hole in its walls. Do you replace it or try to patch it. Obviously the right answer is replace it.

[@michael.a.covington]

Good review and an amazingly thorough test and technically accurate exposition. Just one thing... I don't think the Bayer matrix is equivalent to 3x3 binning. DeBayering algorithms interpolate the brightness of each individual pixel surprisingly accurately. DeBayering by binning actually comes out worse because it introduces unusual effects at edges. Daytime photographers had this debate in the time of the Sigma Foveon, which didn't catch on. But this is a subtle and somewhat controversial point. Your overall technical accuracy is first-rate and refreshing to see.

[@TheNarrowbandChannel]

For poor information it similar to a 3x3 as the bayer algorithm takes 3x3 pixels into account. There are scientific papers on it. Though it acts more like a 2.5x2.5 bin.

[@michael.a.covington]

I need to learn more about those algorithms. Thanks!@@TheNarrowbandChannel

[@Oamaruastro]

This camera does not interest me at all--I'm quite content with what I have--but it's always good to see new content from you!

[@TheNarrowbandChannel]

Since it is a OSC I can say the same but I have enjoyed doing all the experiments to it.

[@nikaxstrophotography]

You can get decent images using a dual band and still simulate the SHO pallette easily enough it's not just shoot in colour and presto you can separate the channels and use a SO dual band lefilter made by Askar . Also I still have not seen anyone test the camera at f7 using a 3nm L-Ultimate. I hope your recovery is going well mate I always look forward to your videos

[@TheNarrowbandChannel]

Yes I had someone use my data to create one of this SHO images. To me though it looked awful. The colors of the gasses were not in the right places. I might make a video covering that topic later. I am aware of the SO dual band filter from Askar and I like the idea. What is cool about dual band filters is that is it getting people to try narrowband. Like I said in the video since I was able to work with a 6.5nm at f10 a f7 with 3nm should be no problem. I just did not have that filter to try out.

[@nikaxstrophotography]

@@TheNarrowbandChannel I have seen some great images made with OSC and dual band I think maybe your friend just didnt do it justice. I've made some images almost indistinguishable from mono using different techniques. It can be done but yes it takes longer. Good health mate we are thinking of you.

[@ShreyasAKale]

Wouldn't you need to step up to full frame (2") filters for the 2600mm duo instead of being able to use smaller 36mm ones? I wonder if that would be worth the cost over an OAG setup?

[@TheNarrowbandChannel]

Yes you do need at least 2in filters. For the OAG. I have one and hated it. Setting it up was no difficult for me but guiding I felt was disappointing. And with all the steps involved and I can see amateurs struggling with this a lot. I have countless questions online about them. And another thing a lot of guys flat out prefer 2" filters to keep vignetting down. But you are only buying one usually. It's not like you have to fill a filter wheel. Good question though. :)

[@robertw1871]

How are you gilding if the scopes image circle is in complete darkness where the guider is? Clearly it’s supporting full frame. And by 7nm is is pretty wide, I think there’s concern about 3nm SII at f/8 1600mm or up when the mono version is released.

[@TheNarrowbandChannel]

So there is an optical catch. Even with an image circle smaller then the sensors there is still light cast behind this though vignetting starts to really come serious. As for the 3nm you just need to convert like I said in the video. F10 with 6.5nm will be same as f7 with 3nm. and since I was Able to work at 0.5s with 1s exposures f8 with 3nm will work. It is simple exposure math. I thought this a lot to students when I taught in college. I think this topic I spent more time on than anything else.

[@robertw1871]

@@TheNarrowbandChannel Got ya, it’s just we have to be skeptical with expensive stuff, most of us find it difficult to find stars in galaxy season with long FL so it doesn’t sound like a good idea to cut even more light, when you need are already in the 2 or 4 second exposure times with a the same guide sensor that’s in this thing. I don’t this the OSC is going to be problem for many with modern scopes and their large image circles. I already have 2 2600s with OAGs so I’m not in the market for a 3rd… It is appealing to add the Octopi to the tight image train on one of my scopes. I imagine ZWO did this to allow space for the rotator on 55mm back focus systems. Where the wheel and OAG would eat up all of it.

[@TheNarrowbandChannel]

@@robertw1871 With galaxies though you will not be using any narrowband filters so I suspect that should not be an issue at all. 1sec exposures or even 0.5sec should be easy even at f8-10 I wish I had two 2600MM. Granted only two of my scopes would work with them well.

[@rvoykin]

Is shooting at twilight really comparable to Bortle 7 or Bortle 8?

[@TheNarrowbandChannel]

Yes absolutely. Sun and moon light polution are no different then lights now that LEDs have taken over.

[@AstroDragon33]

What about an 8se with .63 reducer? Will the guide sensor illuminate?

[@TheNarrowbandChannel]

That might have too small an image circle.

[@TheSannaeriksson]

I have really no idea of the most of what you are talking about, but it's an interesting subject. Someday I might understand some more... 😂

[@TheNarrowbandChannel]

Give yourself time and just keep watching. your brain will put the pieces together with time and repetition.

[@drunk_astronomy]

Great review! But dude, you got a rock the Boonie hat, I love your Boonie hat!

[@TheNarrowbandChannel]

Hey, thanks! My next video will have it in it. Already shot it just need to edit it down.

[@drunk_astronomy]

Hell yea, I love that hat because my dad had one like it.

[@dougiesmart1623]

Another splendid video there 😊. Sorry, this is probably a really stupid question, but why do we need a separate camera for guiding? Why cant your main camera both take an image and guide all with one sensor? I currently have a 120MC guide scope, ZWO585MC main camera, HEQ5 mount and a couple of different scope types. Take care 👍

[@TheNarrowbandChannel]

So you have to take images ever 2-4sec to guid. While the imaging sensor needs to take longer 5min exposures. Obviously you cannot do this with a single sensor. Now the Olympus OM1's IMX472 sensor can actually do this but no one has taken advantage of the hard in it yet.

[@dougiesmart1623]

@@TheNarrowbandChannel nice one, thanks for that. I can see such a sensor that you mentioned being the future as your guiding would be the same FL as your image and would surely make the guiding much more accurate (I didn't know if a FL of 1500mm or more would be too much though ☺️). It's still cloudy here in central Scotland, but hopefully I'll get some opportunities soon. Cheers

[@snakezdewiggle6084]

The Fan issue, with enough thermal mass on the cold side, the fan could be stopped for as much as 60secs. I use remote off-camera liquid cooling.

[@TheNarrowbandChannel]

Hmm not really sure what your comment means. Are you using a translator?

[@snakezdewiggle6084]

Oh, that's okay. It's about Energy ...

[@AstroSoundscape]

​@TheNarrowbandChannel I was thinking the same thing Ben omg 😂. Here let me try.....hmm "The Fan if tilted off axis by 0.55 deg could cause a mini black hole, I use subspace cooling direct from the warp core".

[@AstrophotographyUnderMSSkies]

By the way, Bortle 4 skies here as well, with access to Bortle 3 about 15 minutes away. Approximately 500 acres with no obstructions at all. Nothing like it, unless of course it could be Bortle 1 lol.

[@TheNarrowbandChannel]

If we had a bortle 1 though we would probably complain about Bortle 0. I jus hope my kids will still be able to see the stars some day.

[@alajmiq8]

hello Ben , ur desert friend khalid , i ordered the duo and im wandering is it going to work with my celestron 8 edge hd telescope 2032 mm , withe .7 reducer 1422 mm and HyperStar 8 v4 390 mm , 28 mm size , thx m8

[@TheNarrowbandChannel]

I think someone did in fact try that exact combo and said it worked.

[@anthony-qm3pn]

Would you like to see an all new OM-2 with 26 or 28 megapixels of resolution and width, and all new image processor to allow for more computational photography with improved star, tracker capability, and etc.

[@TheNarrowbandChannel]

Nah go all the way to 44mp with the ability to bin the pixels in camera so it can give you the choice of either 11mp or 44. This is actually a type of thing already offered by one sensor the IMX 492 but it has some older circuitry in it. And updated version with a lot of the features of the IMX472 would be awesome.

[@Planetreefastro]

Hey great video Ben! Glad to see you on here and looking good. Great review. I sent you an email with my contact information and would like to speak to you about something when you feel up to it. Feel good brother!

[@TheNarrowbandChannel]

Hmm I did not get any email. Send it to grimstod at iCloud.com?

[@anthony-qm3pn]

I feel that OM systems badly needs to introduce all new stacks sensor with a minimum of 26 megapixels of resolution to be competitive. How much resolution do you think they can increase the next micro 4/3 sensor by without losing low light capability, which performs worse than what’s already out , obviously, we all want to see better low light capability improved over older sensors.

[@joeydesmond7745]

My girlfriend loves the vibration 😂😂😂😂 . Thank you for this video I'm getting this camera. I'd love to go mono but I live in Ireland 😢😢 they would come out whit a better camera after my first picture whit mono 😂😂😂 cloudy country

[@TheNarrowbandChannel]

You should check out my video on how to shoot during those long months with no darkness. kzbin.info/www/bejne/ramyf4J8qM2ii5Ysi=tF_BGapWxmegpVs1

[@miketronix]

Guides well but the colours produced on the main sensor is muddy and low contrast on mine. Not sure if it has any issues or anyone facing something similar?

[@TheNarrowbandChannel]

It's a OSC. They always produce a muddy image compared to a Mono one.

[@miketronix]

@@TheNarrowbandChannel I come from 294mc pro which results in better single light frame colour contrast for some reason even with the notorious ampglow. Trying to find someone in my area who may have a 2600mc vs duo to compare with same night, same telescope, same exposure, same target etc… to see if mine is faulty

[@TheNarrowbandChannel]

@@miketronix The 2600MC and Duo use the same sensor. There will be no difference.

[@miketronix]

@@TheNarrowbandChannel right that’s why I want to get my hands on one to perform a test and compare if it’s a specific issue with my camera. Thanks for confirming

[@_tyler-_-]

Have you dived into photometry at all?

[@TheNarrowbandChannel]

No but would like to.

[@andrevanzegveld]

If you can find a star on your sensor has nothing to do with the F-stop number. ONLY with the diameter of the lens. With nebulas, you are right, then the F-stop determines if you can 'see' the nebula. Not with stars. Stars are a point-source with any focus length. So only the diameter of the lens is important. With a lens of 4 inch F3 you get as faint a star as with a 4-inch lens F20

[@TheNarrowbandChannel]

This is true.

[@desbarry8414]

I wonder if the thermal paste bleeds on this one too lol

[@TheNarrowbandChannel]

Its the glue that bleeds. I had a 1600mm do it twice in a three month span. Its not a big deal to just clean it. I remember when all the QHY cameras were leaking glue. But you do not hear about it much because they are a tinny company now.

[@thirstly]

I believe you will survive. I do not believe that this is your time, and it seems like you don’t either.

[@TheNarrowbandChannel]

Yes so far I am feeling like I am getting better.

[@luboinchina3013]

And BTW, if your mood will drag you down, there are always flat earth videos to laugh at 😂❤❤❤

[@TheNarrowbandChannel]

Oh I know those are such a laugh.

[@ozicryptoG]

I will wait for the 2600mm duo

[@TheNarrowbandChannel]

Mono all the way for me too. OSC is really just for experiments and if I ever travel to a Bortle 1 sky.

[@ozicryptoG]

@@TheNarrowbandChannel I have been looking at a property west of me (Sydney) about 200km, called Mudgee. Acreage and out of town, bortle 1 😀 Will likely still stick with mono but I will have the opportunity to build a dome or shed with retractable roof (likely shed tbh). Can't wait. If you're ever in Oz reach out, always welcome.

[@TheNarrowbandChannel]

@@ozicryptoG That sounds like a dream. And you have the souther objects to image too!

[@donnan7777]

I would like to know how it preformed with 8 inch 3.5 Newtonian? Light pollution filter? Please. I’m not a tech geek.

[@TheNarrowbandChannel]

That should handle it easily.