Extreme Astrophotography - 1 Hour Subs!!

  Рет қаралды 33,025

Dylan O'Donnell

Dylan O'Donnell

Күн бұрын

I slammed down a red bull and jumped a shark before filming this video.
Highpoint Scientific : bit.ly/2ILOxEq
Creepy camera glasses (Thanks Majestikkal) :
amzn.to/3kHvU1u
Support the channel by buying Dylan's Telescopes, Cameras & Equipment using the links below!
EQUIPMENT LIST
----
Celestron 11" Edge HD Telescope
USA : bit.ly/3JB95JE
Celestron RASA F2 11" Telescope
USA : bit.ly/3Jy4Ezl
International : amzn.to/3ABsVBz
QHY268M Mono CMOS Camera
USA : bit.ly/33u4k5w
Skywatcher EQ8Rh Pro Mount
USA : bit.ly/3gTdWJX
AUS : bit.ly/3dxdRv1
NexDome Observatory by Sidereal Trading (Australia)
www.siderealtrading.com.au
Celestron RASA 8" F2 Telescope
USA : bit.ly/3GTUwiU
International : amzn.to/3G4nlbP
Celestron NexYZ 3-Axis Smartphone Adapter
USA : bit.ly/351K2ki
International : amzn.to/3g20wLd
Celestron CGX Mount
USA : bit.ly/3BtPVCF
Lunt40mm Solar Telescope
USA : bit.ly/3sP8KMX
Sky-Watcher Star Adventurer 2i Pro Pack
USA : bit.ly/3uUVw3O
International : amzn.to/3ABLAwQ
ZWO ASI 174MM (Planetary / Solar Camera)
USA : bit.ly/3uXpEM8
International : amzn.to/3rXqJAj
ZWO ASI 120MM (Guide Camera)
USA : bit.ly/352iBXg
ZWO ASI 1600MM (Deep Space Camera)
USA : bit.ly/3HVtvg1
International : amzn.to/3rXqJAj
Celestron 0.7x reducer for 11" Edge HD
USA : bit.ly/3gTDJSy
Celestron 0.7x reducer for 9.25” Edge HD
USA : bit.ly/3sNyY2o
Celestron 9.25” Edge HD
USA : bit.ly/3LISupw
Canon 6D mkII DSLR
International : amzn.to/2CbiVER
Tokina 16-28mm Lens
International : amzn.to/3fdFJCo
Canon EF 16-35mm f/2.8L III USM Ultra Wide Angle Zoom Full Frame
International : amzn.to/3G9kjmP
Canon EF 100-400mm f/4.5-5.6L IS II USM Lens
International : amzn.to/3H9yPfA
Support my alcoholism by getting some Star Stuff stuff MERCH:
/ @dylanodonnell
Dylan’s links
----
PATREON : / dylanodonnell
WEB : deography.com
FACEBOOK : / dylanodonnell
TWITTER : / erfmufn
INSTAGRAM : / dylan_odonnell_
APPLE MUSIC : / dylan-odonnell
SPOTIFY : open.spotify.com/artist/3npvC...
Intro Music - "Moving the Ocean (Aerologic Edit)" by Blastculture.
You’re free to use this track if you're not a brand or you're not working with one, and you must include the following credits in your video description (Copy & Paste):
------------------------------
Track: Savana - Vendredi [Audio Library Release]
Music provided by Audio Library Plus
Watch: • Savana - Vendredi | Fr...
Free Download / Stream: alplus.io/savana
🎵 Track Info:
Title: Savana
Artist: Vendredi
Genre: Dance & Electronic
Mood: Dark
Triangulum Galaxy
by Pulse Emitter
This song is free to use under specific conditions. [CC3.0 Attribution]
freemusicarchive.org
------------------------------
Epic Song by BoxCat Games freemusicarchive.org/music/Bo...
Creative Commons - Attribution 3.0 Unported - CC BY 3.0
Free Download / Stream: bit.ly/_epic-song
Music promoted by Audio Library • Epic Song - BoxCat Gam...
------------------------------
🎵 Track Info:
Title: Epic Song by BoxCat Games
Genre and Mood: Cinematic + Dramatic

Пікірлер: 225
@DylanODonnell
@DylanODonnell 3 жыл бұрын
A few people in the comments want to know if short exposures will compare to the long one .. good question! I covered this a year ago here - kzbin.info/www/bejne/e37HdpuHeZeKrrs
@user-jn4ih2sy7j
@user-jn4ih2sy7j 3 жыл бұрын
😎
@teninnykanal
@teninnykanal 3 жыл бұрын
I am still waiting for material about the lucky imaging technique...
@catchingphotons
@catchingphotons 3 жыл бұрын
Thanks for this comparison! It would be interesting to see your 1h exposure against 60 1min exposures... The author from SharpCap did a fantastic speech about the length of single sub-exposures - fighting against the myth "the longer the better": kzbin.info/www/bejne/aYOramaLq7Vma5o Love your videos, mate! Clear skies to you! -Chris
@TK-th9vu
@TK-th9vu 3 жыл бұрын
Thanks for the comparison Dylan. I wish you had also included the iso settings of each exposure.
@jeffreystirman6940
@jeffreystirman6940 3 жыл бұрын
@@catchingphotons Everyone should watch that video before they take any images to really understand exposure, background, noise, etc. I use the formula given in that video all the time and generally stick close to it. Unless it says it would be optimal to do a 30min sub, I usually back off to 10min for clouds, satellites, etc. He does a wonderful explaining the actual physics behind it.
@rulz492
@rulz492 3 жыл бұрын
There's a great talk by Dr Robin Glover (of SharpCap) who goes in to detail about choosing good subexposure lengths. Generally, it's only worth going long if you have very dark skies or have a very (read) noisy sensor.
@jeffreystirman6940
@jeffreystirman6940 3 жыл бұрын
Folks would be shocked to know what they should actually use in light polluted areas! That video is amazing and worth the watch for anyone!
@RaysAstrophotography
@RaysAstrophotography 3 жыл бұрын
Your videos are getting better and better Dylan! They are making points in every frame. Like the long exposure analysis!
@dam0cles62
@dam0cles62 3 жыл бұрын
Great video Dylan. I’ll be trying this. Just what I’ve been waiting and hoping for. Absolutely great. Thanks. Doug
@fidelpacheco8249
@fidelpacheco8249 3 жыл бұрын
Very inspiring! I can see the difference between short and long exposures, even with the dslr! Thank you very much!
@otameal
@otameal 3 жыл бұрын
Always love your stuff! Fun content & presentation. Cheers from a currently soggy Northern California
@VincentGroenewold
@VincentGroenewold 3 жыл бұрын
Yep, all about having a dark background. Using narrowband = loooong exposures that will help most, dark sky = loooong. Lot of city lights and narrowband = long exposures. But if your sky background is up, it makes more sense to go for more and shorter ones.
@matt54321100
@matt54321100 3 жыл бұрын
The "extreme exposure' joke earned this vid a like.
@rcraigmacrae
@rcraigmacrae 3 жыл бұрын
Thanks for the catchy B-Roll music. Will be stuck in my head the entire day.
@aysolar
@aysolar 3 жыл бұрын
Great video - hope you're staying sane and keeping occupied during this pandemic!
@user-jn4ih2sy7j
@user-jn4ih2sy7j 3 жыл бұрын
Yoo these glasses are pretty lit 😎 though I would never be patient enough to get an 1 hour exposure done but nice picture dylan
@michs1708
@michs1708 3 жыл бұрын
Great vid Dylan! I remember Peter Zelinka did a video on long exposure time (low ISO) vs short exposure time (Higher ISO) with a DSLR and he had great results with long exp time too. a lot less noise. So if you have a mount that's properly aligned and stable, and you have the time (clear skies all night 🤞) then definitely worth a crack! keep up the good work! 😎
@Avanteesh_Astro206
@Avanteesh_Astro206 3 жыл бұрын
Great Video Dylan !! That was Really awesome👍 And Felt Amazed. Btw Clear skies☄🪐🔭🌌
@robsbackyardastrophotograp8885
@robsbackyardastrophotograp8885 3 жыл бұрын
I'll stick with 512s, living next to an airport & all.
@hsocommunity7209
@hsocommunity7209 3 жыл бұрын
I love your editing man 😉
@Stmcead
@Stmcead 3 жыл бұрын
Just starting out. Thanks for the info in your videos. I am so new I received my first telescope but still waiting for the parts to guide and attach the camera. I did get the Celestron CPC 1100 HD and the wedge.
@Handles-R-Lame
@Handles-R-Lame 3 жыл бұрын
Can we all take a moment to appreciate his utmost dedication to give most if not all of the comments posted a --> ❤ It makes this meaningless life of mine, just a tad bit more meaningful.. Besides.. i wanna top his record 1 hour exposures with a 24 hour exposure... 😎 🔭🌙☀️🌟 Who wears the shades now, pal?!
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Haha thx Matt.. I try!
@StargazerFS128
@StargazerFS128 3 жыл бұрын
I don't do AP but, Dylan's intro is a great excuse to put on my Bose headphones.
@juansunsundegui5643
@juansunsundegui5643 3 жыл бұрын
Thank you Dylan for all those good parts of light! Are you going to Chile on December? Enjoy life mean while!
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Chile? I wish!
@juansunsundegui5643
@juansunsundegui5643 3 жыл бұрын
@@DylanODonnell Very welcome!
@trev354
@trev354 3 жыл бұрын
Great job as always Dylan. :-)
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Thx Trev!
@strelnikoff7
@strelnikoff7 3 жыл бұрын
Never admit mistakes, deny - everything... M33 ... Baldrick ! Are you private Baldrick? NO!
@astronerdgreg
@astronerdgreg 3 жыл бұрын
It's always best to blame it on the weather regardless of the mistake
@AstroQuest1
@AstroQuest1 3 жыл бұрын
Great video Dylan, I love all of your experiments. I have a lot of nights where the transparency sucks, that quick shot with the iphone is a great idea. Cheers Kurt
@dankahraman354
@dankahraman354 3 жыл бұрын
He is a bad influence on you Kurt....;)
@AstroQuest1
@AstroQuest1 3 жыл бұрын
@@dankahraman354 Ha Ha
@AstroLaVista
@AstroLaVista 3 жыл бұрын
Dylan bringing his A game yet again! Comes up with the coolest video ideas, then really goes to town on the analyses! Side note: Did anyone else fancy a game of chess after watching the Queens Gambit?
@majestikkal8603
@majestikkal8603 3 жыл бұрын
Lmao 😂 Thanks for the creepy shoutout. Nice little MIB intro. 👍 On another note, that 3:45 trick is much appreciated and finally answers why my photographs come out meh.
@yugantbhargav6405
@yugantbhargav6405 3 жыл бұрын
Just subbed! Nice videos; would recommend you do one on ideal exposures for LP skies using CCD
@Astronurd
@Astronurd 2 жыл бұрын
Dylan wouldn’t know a LP sky if it bit him in his arse
@matthewcard1874
@matthewcard1874 3 жыл бұрын
That 3D map tool is awesome. Very cool. Thanks for the video.
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Not sure if that’s what it was meant for but it helped illustrate this point :)
@jasonpatterson8091
@jasonpatterson8091 Жыл бұрын
I enjoyed the video, but I think a more meaningful comparison is a stack of 60 1-minute photos vs 1 60 minute photo.
@BIGV1N
@BIGV1N 3 жыл бұрын
The music you choose is always fire. That opening track got me more pumped up than your pathetic redbull! Every one of your uploads is such a gem!
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Thanks man ! 🤘🏼
@cryptojihadi265
@cryptojihadi265 3 жыл бұрын
Wow. What a great video. Very helpful.
@Cruz474
@Cruz474 2 жыл бұрын
8:55 World of Warcraft bluffs! perfect analogy, I know exactly what you are talking about now.
@Brik2246
@Brik2246 3 жыл бұрын
Love that outro
@PentaxEnthusiast
@PentaxEnthusiast 3 жыл бұрын
You had me at "World of Warcraft bluffs". Definitely a true statement once you get flying in the older content... Now if only I could even get something decent with 5 minute subs.
@DavesAstrophotography
@DavesAstrophotography 3 жыл бұрын
I really need to sort out my guiding after seeing your 1hr image, I'm currently getting big eggs at 4 minutes. Roll on 2021 to start tweaking again! You deserve many beers after that...
@DylanODonnell
@DylanODonnell 3 жыл бұрын
I couldn’t believe it worked!
@Handles-R-Lame
@Handles-R-Lame 3 жыл бұрын
I know right.. talk about guiding being on point! Puts most of us to shame!.. well at least me of course lol
@petetube111
@petetube111 3 жыл бұрын
Haha, new mount 😀 I’m going down the 10micron GM1000 hps path. Nice vid as well.
@scott1958tube
@scott1958tube 3 жыл бұрын
Using 60 minutes on an F2 RASA would be more than interesting on that target
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Hard agree
@pigeond
@pigeond Жыл бұрын
the world of warcraft reference just made my day lol
@robertbennett6410
@robertbennett6410 3 жыл бұрын
DANG dude I wish I had your level of skill!! Your amazing with your imagry!
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Hah thanks Robert
@majestikkal8603
@majestikkal8603 3 жыл бұрын
I think we all wish we had his skill. For Realz
@roshaannadeem4913
@roshaannadeem4913 3 жыл бұрын
That Star Stuff intro!!!!
@nishantpatil61
@nishantpatil61 3 жыл бұрын
HI Mate, i will try 1hr sub tonight. Always something new from your videos. Loved it.i only hope my ccd dont blow up. Wish me clear skies.
@ergio1
@ergio1 3 жыл бұрын
Nice one mate... 💪... you now need to post reprocess 1, 2, 3 of the 3600s exp 😂, perhaps it will magically stack more data ... is that a small dehumidifier that you have inside the dome? ... I went for the helix a few weeks ago and was not happy with my image, I guess I have pushed my small wide field refractor at 420mm beyond its limits... even in mono with Ha and RGB... not an easy target to get right ... cool glasses 🤓
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Yeh tiny dehumidifier.. was in a recent video about obs maintenance but it’s doing quite well :) cheap too.
@devilmastah
@devilmastah 2 жыл бұрын
If you want to see high clouds or want to check for haze get yourself a Seek thermal camera for your phone, you can see even slight haze hanging arround against the cold space.
@banddlarsen89
@banddlarsen89 3 жыл бұрын
awesome buddy, have a cold one..
@newforestobservatory9322
@newforestobservatory9322 3 жыл бұрын
A very nice piece of work in a short video!! I have spent something like 10 years looking at the difference between LOTS of short subs versus a much smaller number of very long subs. In my early imaging days I worked with a Hyperstar on a C11 scope and used between 1-minute and 90-second subs. I typically took 100 subs on an object with an OSC CCD. Now the result was a beautiful, completely NOISELESS image, glassy smooth - but it did not go deep!! So using the Pleiades as an example, you got a beautiful glassy smooth starfield - but there was no sign of all the Taurus Molecular cloud nebulosity surrounding the region, and there was no sign of the bunch of faint galaxies around the top of the Pleaides. I then imaged the same region with an array of Sky90s and used subs up to 1-hour long. The Taurus Molecular cloud came through and so did the galaxies. Because I had a ton of shorter subs added in, the result was also glassy smooth. But there is a problem - it's not all win-win. The very long subs started to bleach out the colour - so the brilliant blue around Merope was bleaching out to more white, and the few very red stars in the region were also starting to lose their colour. If you mix the long subs with short subs (to get the colour back) then you also start to lose some of the Molecular Cloud. So what is my conclusion after 10 years of looking at this?? NOTHING beats LOTS of subs using VERY LONG exposure times, but you should limit your exposure time depending on the object. Also the minimum number of subs you should go for IMO for a World Class image is around 50 - but if you can get 100 then go for it. Putting this altogether it means that for a World Class image you will need at least 8 - 10 hours total integration time on an object. All this is true for my lousy rural skies of course - if you are blessed with truly dark skies, you can get away with a lot less, and you will also see a great deal more than me using a lot less.
@newforestobservatory9322
@newforestobservatory9322 3 жыл бұрын
I should add - if you include just one lousy sub with the other 99 good ones YOU WILL SEE THE DEGRADATION. So the other thing you MUST do is check every single sub carefully to make sure it is of good enough quality to add into the stack.
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Yep.. less is more. Sounds like you’ve reached the same conclusions after years of experimentation also.
@newforestobservatory9322
@newforestobservatory9322 3 жыл бұрын
@@DylanODonnell It really all comes down to your sky background. 10 years ago I had terrible light pollution from all the Sodium street lamps I was surrounded by - BUT - the light pollution filter very effectively removed the Sodium lines - so to my CCD camera the sky actually looked pretty dark (which is almost impossible to believe if you took an SLR picture of the sky as it was brightly lit by a sickly yellow fog). Now all my street lights have been replaced by LED lights and at first sight the sky LOOKS much darker. If you now take a DSLR picture the sky seems quite dark and there's absolutely no yellow glow - BUT - the sky background is actually now FAR WORSE than when I had all the Sodium lights. Why? Because the broadband LED lighting cannot be filtered and overall there's MORE light pollution across all visible wavelengths than I had with my Sodium-filtered sky. I am now unable to go as deep in my imaging as I could 10 years ago.
@gavin5326
@gavin5326 3 жыл бұрын
Super interesting stuff
@ibnulhussaini3791
@ibnulhussaini3791 3 жыл бұрын
Dang the stars are pretty impressive for the hour long exposure. I was expecting a trail. Btw are you getting another CGX mount or something different? I'm having issues with the CGX as well. Thinking of upgrading to the CGX-L
@BOOFSIDEPINS
@BOOFSIDEPINS 3 жыл бұрын
Buy once. Buy good. Buy 10micron.
@pooshoveler
@pooshoveler 3 жыл бұрын
My cgx-l does the same thing, they said its within specs. I wish i could of just bought the Eq8 you got, I could of put that 4k toward the 8k mount. I am stuck under 1000mm focal length. This sucks.
@grahamhgraham
@grahamhgraham 3 жыл бұрын
I actually prefer long exposure cos the noise reduction and image quality improvement is significant. While I only have a star adventurer I've still managed to get pin sharp, noise free, 30 minute long exposures using a Zeiss Distagon 15mm lens on a Canon 5DSr to capture wide field images. Even had it up to 4 mins with a monster Canon 300mm f2.8L prime haning off it, at least 2.5kg over its payload limit and it still works! Anyway, thanks again for your tips and insights. Greetings from a relentless cloudy November in Scotland.
@southbronxny5727
@southbronxny5727 5 ай бұрын
Coming back, I wish you'd stacked 100 1min subs vs 6 or 7 one hour subs to see the differences.
@roderickwho1983
@roderickwho1983 3 жыл бұрын
Thanks for a great video. A small child told me recently the, " everyting will be alright". I just smirked, because you and I know better. ;-)
@space9342
@space9342 3 жыл бұрын
yesssssssssssss nice vidio Mr. donnell really loved it
@space9342
@space9342 3 жыл бұрын
THanks dylan
@space9342
@space9342 3 жыл бұрын
Can you do a tutoial for what i asked plss
@technobird22
@technobird22 3 жыл бұрын
Nice video! You filmed the intro with sunglasses that have a camera in them!
@technobird22
@technobird22 3 жыл бұрын
(EDIT: Answered directly after intro, before you mentioned it)
@BrotherAlan
@BrotherAlan 3 жыл бұрын
Yeah after the Starlink constellation gets built out you won't want 1 hour exposure for sure. Hell we probably will be lucky to have a 1 minute sub without a trail. In fact planning software will have to take into account when a patch sky clear of satellites will be overhead so you can image. LOL
@karllewis735
@karllewis735 3 жыл бұрын
So, will you eventually compare how 1 hour exposures vary depending upon the type of beer consumed during each exposure? I mean, with five minute subs, anything but a lite beer is likely to be disastrous, but in an hour, you've got much more time, so, stouts, or whatever should be possibilities, right?
@dmccallie
@dmccallie 3 жыл бұрын
Very cool. Now try stacking 60 one minute exposures and compare that to the one hour exposure? And maybe 12 5-minute exposures. How well does stacking account for those faint stars that were missing from the 1-minute shots? Etc.
@DylanODonnell
@DylanODonnell 3 жыл бұрын
See pinned comment :)
@bobbeanbags
@bobbeanbags 3 жыл бұрын
Awesome, how did you get your mount/guiding tweaked so well to get round stars with an hour exposure?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
See my previous video on hyper tuning my cgx mount :) but basically as long as you are polar aligned and guiding ok you can go as long as you like.
@9090peter9090
@9090peter9090 3 жыл бұрын
If you have some extra money or rubed a bank you can buy good mount and do photos like Dylan😂
@pacostiro
@pacostiro 3 жыл бұрын
Hi Dylan! At 8:26 it may be seen that the star has a lateral chromatic aberration. How high was the galaxy when you shot the frames? I am asking because I see a similar pattern in my photos and I wonder whether it was due to atmospheric dispersion or my refractor has optical issues since the target was between 45 and 70 degrees altitude and I thought that the dispersion should manifest itself much lower.
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Can’t be that then.. this target is basically overhead at the zenith.
@Kyle_Hubbard
@Kyle_Hubbard 3 жыл бұрын
Intro confirms Dylan as the next Terminator?
@KnowledgePerformance7
@KnowledgePerformance7 3 жыл бұрын
New mount?!? What are you looking to get?
@GalileoUAS
@GalileoUAS 3 жыл бұрын
The Queens Gambit! Love the game love astronomy. -Beth "your the best i've ever played....." -Lil Russian Kid ".....until you play Borgov" I have never commented on your many videos that have helped me significantly "extremely" jealous of your Talents man. Clear Skies!
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Hey thanks!
@jowaldo
@jowaldo 3 жыл бұрын
I'm having the same issue with my CGX-L mount. Tried hyptertuning the heck out it like your other video showed but still getting the issue. Does your mount randomly jump fast and do weird movements when slewing too?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
No mine tracks ok but the ra wobbles enough that the stars aren’t 100% .. it’s a real concern and no one here can fix it.
@dirkschwarze7478
@dirkschwarze7478 3 жыл бұрын
Hi Dylan, I would like to see a comparison 60 mins vs. 60x1min stacked an if there is any noticable difference...
@DylanODonnell
@DylanODonnell 3 жыл бұрын
I have another video with that test :)
@joeshmoe7967
@joeshmoe7967 3 жыл бұрын
A 1 hour sub IS better than 60 1 minute subs under good conditions. The point of diminishing returns is at about the 10 minute mark. 6 10s would be as good, and possible better than a single 60. Under perfect conditions, very dark skies, stunningly accurate tracking etc, I hour subs would be great. The draw back becomes, from a technical glitch, a wisp of cloud. Imaging 4 hours of 4 60 min subs. Each sub is 25% of the whole session. I blown frame and it is a huge loss. Shoot 24 10s, and lose a few to what ever cause, and it is just a tiny fraction. For us amateurs, great results from 1-5 minutes , with out the drawbacks. I shoot 2 minute subs for the conditions I face and am pretty happy. Not even possible to shoot 10s let alone, 1 hour. Sky conditions just don't allow for it.
@wolfyjaz
@wolfyjaz 3 жыл бұрын
why is everyone watching the Queens Gambit right now?? LOL! Cool glasses btw. You mentioned about getting a new mount. Aren't mounts supposed to last something like 25 years? How long does it take for a mount to die?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
It’s such a good series! I’m pretty sure my mount is just not good enough for the 11” SCT
@AstroDenny
@AstroDenny 3 жыл бұрын
Interesting- Longest I ever went was 20 minutes to see how many fuzzies I could get out of Markarian's chain. Interesting how the noise flattened out so much. I would be curious to see how gain and offset affect star saturation at an hour? Were you at unity gain? Nice M33! Was that with your HaGB technique?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Yes G-HaGB :) the gain settings were the same for both exposure tests (not high, pretty low).
@AstroDenny
@AstroDenny 3 жыл бұрын
@@DylanODonnell I am surprised at that there was only one satellite in that hour- Helix is near the CE and there's usually more there.
@NG-VQ37VHR
@NG-VQ37VHR 3 жыл бұрын
What software do you use for image processing and editing? Do you happen to have a video going through your method of editing the image after collecting data and stacking?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Pixinsight.. I do have a fairly thorough m42 processing walkthrough video :)
@NG-VQ37VHR
@NG-VQ37VHR 3 жыл бұрын
@@DylanODonnell thanks. I've got decent equipment and can collect good data. I'm still trying to learn what to do with that data and how to make a decent image though. Your videos have been entertaining and helpful.
@christianvulpescu1398
@christianvulpescu1398 3 жыл бұрын
Cool experiment. But I thought that the SNR depends only on the total integration time. Not on the length of the individual subs. CS Christian
@scottrk4930
@scottrk4930 3 жыл бұрын
Nice Video ! Are we starting to discuss Pixel Efficiency and Full-Well capabilities etc. ? Is this where the >$3K Cameras start to pull ahead of the Pack ? You mentioned a new Mount . Any hints or will that be a new Video reveal ? My bets are on a Harmonic Drive . Cheers . /SRK
@daddyzac62
@daddyzac62 Жыл бұрын
Hi: I come from the film side of astrophotography were exposes of 3 hours or more on hypered cooled film was the thing for detail before CMOS and CCD cameras were a thing.
@thewesternpassager
@thewesternpassager 3 жыл бұрын
Hi ! I wandering if the 1h00 expusure is 1 frame or 60 frames of 1 minutes expusure that you stack to get 1h00 expusure ? Sry if i'm asking, i'm not sure i get the info watching the video :) Thx again for your sharing ! have a good day !
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Single subs no stacking :)
@erikmardiste
@erikmardiste 3 жыл бұрын
But if u live in Bortlie level 6 or more with out filters anything over 3 mins is not much good. Do you use the zwo air pro Dylan?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Yeh I’m at a dark sky area .. and no, I have a dedicated server so no need for air.
@erikmardiste
@erikmardiste 3 жыл бұрын
Ah ok
@VincentGroenewold
@VincentGroenewold 3 жыл бұрын
Yep, its about the sky background noise. No filter and city lights will swamp the sensor. So then it makes more sense to go for a loooot of data and shorter exposures (do check the histogram though, having a white image might not be an issue if it’s not clipping the sensor). But when using narrowband or being at a dark site, a very long exposure will outperform shorter ones easily as you get much better signal over noise.
@astromansid
@astromansid 3 жыл бұрын
Longest I have gone is 300s, but that was from Bortle 6/7 skies and just for fun. Now I shoot from Bortle 2 skies, I might end up shooting much longer.
@dankahraman354
@dankahraman354 3 жыл бұрын
Its is your very low gain that is allowing a high dynamic range and low noise....what was your gain with the 1 hour (single) sub? What camera is it?
@mgmcd1
@mgmcd1 3 жыл бұрын
M33 looks just like that when I do my visual astronomy. 😎
@jamesdougan8789
@jamesdougan8789 3 жыл бұрын
g`day dylan is the CGX out the door after only 3 years i thought the mileage would of been better ... so what mount are you going to buy ???? what brand are you looking at and are you going for a mount of higher spec than the chineses brands the plainwave mounts look cool the neighbours would think its a missile launcher lol if you have deep pockets ... what will you guestermate your budget will be for the new mount and will you buy celestron CGX again as a straight replacement ?????? was the CGX worth the nearly $4000 dollarydoos for 3 to4 years use ????
@DylanODonnell
@DylanODonnell 3 жыл бұрын
I know I know .. it’s just not handling these long focal lengths very well at all. Not sure if it’s All CGXes or just mine.
@jamesdougan8789
@jamesdougan8789 3 жыл бұрын
@@DylanODonnell dylan your mount has had a hard life.. everything no matter the brand wear out or need fixing after a while have you looked at a complete strip and rebuild and bring it back to speck.. i think its your bearings getting tight(motors and main pivots RA DEC) from moisture in the dome a bit of rust / dirt /ant bodys from the great ant attack last summer lol old grease.. look how much it improved over a few months ago after you did the belts adjustments .. mounts need love too .. a few hundred in bearings(at a industrial supply) might save ya thousands in a new mount or new gear is always nicer.. hope you keep us informed in your thinking and the process and outcome because its the heart of any imaging system is the mount cheers james D
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Yeh I’ll sell it cheap to someone with more skills than me :)
@jamesdougan8789
@jamesdougan8789 3 жыл бұрын
@@DylanODonnell well that counts me out if you need skills just to buy it.. i am schultz..i know nothing .. i am at the stage i have been basically priced out of the hobby if i want to advance anyway .(i need a mount and a bigger sensor camera etc) the zwo asi290mc just don't cut it for widefield lol cheers james D
@alphatango4447
@alphatango4447 3 жыл бұрын
Extreme exposer example at 1:19 made me spill my coffee 😂😂😂 u have gr8 senses of humour 👍🏻🤘🏻
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Hehe
@alainmaury5941
@alainmaury5941 3 жыл бұрын
Talking about making wide angle photographs of the sky with a telephone, things are progressing quickly. Iphones have very lousy cameras. The high end Samsung are starting the be good. The Huawei P40 gives pretty impressive images of the Milky Way. The top is the recent model from Xiaomi, the Xiaomi M10 T Pro, it has a 108 megapixels camera, and the images on the sky are crazy. Very likely better than with an APS reflex camera. It can stack images and do star trails, I was quite impressed by this telephone. You ought to look into it.
@lklmmedia4715
@lklmmedia4715 3 жыл бұрын
Dylan - How good are Highpoint Scientific with Shipping? have found something on their US site that with Current Exchange rate is almost less than half the Local price - but concerned shipping might then end up tipping the scales... It isn't for large Item - just .7x Focal Reducer for EdgeHD8 (which no-one has as Celestron are out of stock...) - so either way I have to wait, but might as well also get it at bargain cost...
@DylanODonnell
@DylanODonnell 3 жыл бұрын
I can’t use them except for special orders because they don’t ship to Australia generally!
@majestikkal8603
@majestikkal8603 3 жыл бұрын
I ordered my Evo Nexstar 9.25 SCT from them, and had it shipped within a week. From New Jersey to Florida. Don't know about overseas shipping, pretty sure that's where the price will hike up if you do. But definitely stick with High Point Scientific. They are awesome, knowledgeable, and have really good support (considering pandemic here). And make sure to drop Dylan's name if you order from them. They like knowing how you learned about them.
@benjaminolry5849
@benjaminolry5849 3 жыл бұрын
You talked for like 20 seconds and already earned an updoot ^^
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Heh
@benjaminolry5849
@benjaminolry5849 3 жыл бұрын
@@DylanODonnell Your stars have like yellow tops and blue bottoms. I think you are already hitting atmospheric dispersion. You can also reduce star size by aligning the RGB Channels. Does anybody use adc for Deep sky ? I think it was only needed for planetary for "amateurs" (green eyed look to your manly aperture) up until now.
@DylanODonnell
@DylanODonnell 3 жыл бұрын
The histograms look pretty aligned but I’m sure there is a process to align them better .. not sure if it would work for OSC or not.
@benjaminolry5849
@benjaminolry5849 3 жыл бұрын
@@DylanODonnell astro pixel processor has an option to align rgb channels after calibration and before normalization. It helped me tremendously to reduce chromatic aberrations from my old Nikon 400mm f3.5 and on Reflector subs with near horizon targets here in Germany like the Eagle Nebula. If you do synthetic luminance from rgb for lum sharpening this also helps to tidy things up.
@TheAstroGuy_m42
@TheAstroGuy_m42 3 жыл бұрын
Grt vid!!
@ddddfffify
@ddddfffify 3 жыл бұрын
To be fair, Yous should test the same amount of overall exposure time for each site. 1x60min vs 100x1min (stacked). I think that would deliver more honest results :)
@Astronurd
@Astronurd 2 жыл бұрын
Surely you mean 60 x 1 minute
@carltanner9065
@carltanner9065 3 жыл бұрын
Nah, that's not extreme :D How about extreme astro-processing. With a laptop strapped to you, you have to HALO jump from 35000 feet and process an astrophoto before you make it back down to the ground. If you don't get it finished by then, you have to then run through the rainforest, all the while working on the image, and then without breaking stride base jump off the top of Angel Falls. The image has to be finished by the time you get to the bottom :D If it's still not finished, you forfeit the $5million in prize money :D :P We can get Bear Grills to host the episode :D
@DawgcityClev
@DawgcityClev 3 жыл бұрын
Did you use a RASA for your test subs?
@DylanODonnell
@DylanODonnell 3 жыл бұрын
C11 f7 1960mm
@DawgcityClev
@DawgcityClev 3 жыл бұрын
@@DylanODonnell I thought so. I've been waiting for you to donate that C11 to me and you're still using it! lol
@slzckboy
@slzckboy 3 жыл бұрын
are you using less gain over the hour to avoid blowing out the highlights or is everything just the same on the minute vs 1 hour ? Ta
@slzckboy
@slzckboy 3 жыл бұрын
actually i think you answered that :)
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Hehe yes :)
@qwertymonsta
@qwertymonsta Ай бұрын
Soooooooooo if somebody had perfect guiding, they could take a long exposure of multiple hours from rise to the meridian or meridian to set. Imagine capturing a whole night of astrophotography in 2 pictures.
@prnzssLuna
@prnzssLuna 3 жыл бұрын
Only 1 satellite trail in the 1h exposure is pretty good
@DylanODonnell
@DylanODonnell 3 жыл бұрын
I reckon!
@zfisher
@zfisher 3 жыл бұрын
Good video,very interesting comparison. Please work on your sound mixing, the difference in volume between your voice and the music had me constantly turning it up or down.
@Thunder_Dome45
@Thunder_Dome45 3 жыл бұрын
Lord don't get an EQ6R pro. Nothing but problems. I'd get one of the Ioptron mounts. I made a mistake getting the EQ6R Pro. They must have Americanized them because mine came like it put together on Friday afternoon at quitting time. Grabbing it at the top it wiggled. I found a way to fix that. Then it was slipping all the time in RA axis. I think I fixed that. It was balanced and I couldn't understand why the guide star just suddenly streaked across the screen. Well the mount was slipping in RA. Too much grease was on the screw that is supposed to keep it from slipping.
@Doctoberfest
@Doctoberfest 3 жыл бұрын
Dude you were supposed to take the photo facing the camera at 1:19 :( also when did you get a grey lab coat?
@piotrjakuc6357
@piotrjakuc6357 3 жыл бұрын
C'mon Dylan! You should have labeled the Triangulum Galaxy as NGC 253 just to go full circle!!
@pompeymonkey3271
@pompeymonkey3271 3 жыл бұрын
Wubba Lubba dub-dub!
@jujubean7664
@jujubean7664 3 жыл бұрын
I consider doing three minute subs pretty long with my setup, and you're over here doing one hour subs lol
@DylanODonnell
@DylanODonnell 3 жыл бұрын
Haha I surprised myself
@Microtonal_Cats
@Microtonal_Cats Жыл бұрын
I would assume every 1 Hour Sub would have a least one satellite, meteorite, or airplane in it.
@xe1zlgg
@xe1zlgg 3 жыл бұрын
10 min RASA images should equal a 1 hour on your scope.... of course not the same pixel... thanks for share..
@starwatcher
@starwatcher 2 жыл бұрын
Also extreme... X-ray photo of the bullet cluster by Chandra X-ray Observatory. Exposure time was 140 hours!! 500000 seconds.
@GoldSrc_
@GoldSrc_ 3 жыл бұрын
Time to go extra extreme, 24 hour subs lol.
@jeffweiss2131
@jeffweiss2131 3 жыл бұрын
I recently got two defective CGX-L mounts in a row from Highpoint. The first mount started out working very well. within a week it had problems tracking. The mount would take a big leap in Dec and wreck an image. I sent it back and got another from them. The second CGX-L had egg shaped stars from the beginning. They were worse than yours are in this image but identical in shape. I contacted Highpoint who got hold of Celestron. Celestron sent me a two paged typed set of instructions on how to make an unguided guided log. It took all night but i got it done. 4 days later they wanted the mount back. You should not have to pay for that mount. The error has something to do with the teeth on their gears. It looks like there is a 21 second error that is bad. The belt sticks in the teeth of the gear it looks like to me. Celestron has manufacturing problems with all the covid issues going around. I think they second sourced their motors and possibly some other parts of their mount. Good luck with your mount and thanks for the excellent streams. Try a 10Micron mount and don't look back!
@Handles-R-Lame
@Handles-R-Lame 3 жыл бұрын
Yeah id have to agree. Although i love most Celestron made products, the mounts have been their weakest link from what ive experienced and seen from other imagers. For instance i have the AVX(the newest model) and in the beginning it worked for the most part; i could easily get 5 minute, unguided exposures before i got any type of lines or eggs, that was with just a rough polar alignment(no polemaster). Now, after having the mount for a little over 2 months im experiencing trails and eggs. Ive noticed at times it would seem to skip while it was tracking, like it will slow down and then speed up or just altogether stop for a millisecond or two. Just long enough to cause little raindrops.. only on the best/luckiest of nights can i get anything over 2 minutes 😪 Celestron has officially broke my heart..
@thenoisyelectron
@thenoisyelectron 3 жыл бұрын
I'd bump the mount 59 minutes in, guaranteed.
@southbronxny5727
@southbronxny5727 3 жыл бұрын
Yoooo....You can sell that Telescopic Water!!!
@user-jn4ih2sy7j
@user-jn4ih2sy7j 3 жыл бұрын
😎
@Opceedee
@Opceedee 3 жыл бұрын
Extra credit for making a color photo with an asi 1600 mm cool.
@PujicMafia
@PujicMafia 3 жыл бұрын
So Dylan, what camera did you use for the 60m exposure??
@wanderingquestions7501
@wanderingquestions7501 3 жыл бұрын
HighPoint: the worst for honoring your warranty.
13 Things I Hate About Observatories
15:19
Dylan O'Donnell
Рет қаралды 17 М.
Exploring 12 Astrophotographer's Styles
16:48
Dylan O'Donnell
Рет қаралды 23 М.
SMART GADGET FOR COOL PARENTS ☔️
00:30
123 GO! HOUSE
Рет қаралды 22 МЛН
[실시간] 전철에서 찍힌 기생생물 감염 장면 | 기생수: 더 그레이
00:15
Netflix Korea 넷플릭스 코리아
Рет қаралды 38 МЛН
Godzilla Attacks Brawl Stars!!!
00:39
Brawl Stars
Рет қаралды 8 МЛН
The World's Fastest Cleaners
00:35
MrBeast
Рет қаралды 108 МЛН
7. Complete Setup Tutorial for Dedicated Astro Cameras
30:31
Peter Zelinka
Рет қаралды 41 М.
Which Astrophotography Camera Should You Buy?
16:13
Dylan O'Donnell
Рет қаралды 127 М.
Globular Cluster Night
8:59
Seven Skies Astro
Рет қаралды 135
This is the #1 Tip for Improving your Astrophotography
9:57
Bray Falls
Рет қаралды 11 М.
Bin1 vs Bin2 vs Resampling - or, To Bin, or Not to Bin?
16:12
lukomatico
Рет қаралды 7 М.
The Weirdest Thing I've Seen Through My Telescope
10:57
Dylan O'Donnell
Рет қаралды 67 М.
16 Reasons Your Astrophotos SUCK
15:43
Dylan O'Donnell
Рет қаралды 58 М.
I Took a Photo of Saturn with Good Seeing!
9:52
Dylan O'Donnell
Рет қаралды 19 М.
САМЫЙ дешевый ПК с OZON на RTX 4070
16:16
Мой Компьютер
Рет қаралды 79 М.
Samsung or iPhone
0:19
rishton_vines😇
Рет қаралды 2,1 МЛН