Huge Telescope. Tiny Sensor. Why?
34,056
Published 2024-05-31
Camera I used: www.touptekastro.com/products/atr585c?variant=4719…
Telescope I used: bit.ly/3S7T9ot
Processing software I used: siril.org/
Astrobin group / discussions: www.astrobin.com/groups/92/short-exposures-dso/ and www.astrobin.com/forum/c/astrophotography/deep-sky…
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Contents
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0:00 Why?
2:08 'Resolution' explained
3:45 Limits on resolution
6:55 The solution: Lucky Imaging
9:38 The gear
12:13 Capture
14:24 Squarespace (sponsor)
15:25 Stacking with Siril
24:32 Results
27:00 Next steps
28:14 Extended shell
29:10 Patreon (credits)
This video is sponsored by Squarespace.
All Comments (21)
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Lovely work Nico!! If youre looking for other ways to explore this then as a few others have commented, a major labour saver could be Sharpcap live stacking with fwhm filtering, - you can stack on the fly with calibration and rejection, along with the ability to automatically save and reset at a chosen interval/stack size - that way you can make stacks of sub-stacks, and only have to finally combine a handful of masters which are actually comprised of thousands of frames! 👍 I've had great results with that in the past, highly recommend giving it a go :-D Clear skies! Oh and how could I forget, pre-congratulations on 200k!!! Amazing! ❤
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astrobiscuit also did lucky imaging. he used a 10 inch newt.
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Another great presentation Nico, I really liked the opening section with the various explinations. Honestly didn't know what was meant by lucky imaging until now. Hints as to why video capture has benefits for objects like the moon.
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OOOOOHH boy, a long, technical video from Nico about a niche but wildly interesting Astro imaging technique? Best Friday ever.🎉🎉🎉
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This was awesome. Thanks for sharing!
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I have to watch this again. I have wanted to do lucky image processing with Siril but there was nothing on how to do it till now.
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Excellent video as always! Keep up the great work.
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Thank you for this video. I was researching similar telescopes. This video helps my research a lot.
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Hi Nico. I'm going down a similar rabbit hole by pairing a small sensor camera with my 71mm travel scope. The purpose is to make an airline-friendly setup which can be transported in my carry-on luggage and has an image scale that's usable for imaging galaxies and planetary nebulas. Your video was very informative and is helping me to make a decision on the kind of camera to use. Keep up the great work!
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I love your videos, keep going dude!
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Thank you for this! I have the same Touptek camera and am close to getting set up with an F4 10" Newtonian - both for planetary and smaller DSO capture. 😀
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I don't think 1 second is enough for true lucky imaging, your seeing would have to be really good for that. under 250-500ms, capture 20k-30k, stack 5% or less and you should be good :)
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Love your methods, I'm learning so much. thanks man. as always beautiful images of the Creators art. :)
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Good to hear angular resolution and Rayleigh criteria being mentioned.
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I would love love love love love to see a video where you're combining the short and long exposures.
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199K!!! Almost there Nico, I wonder if you will be celebrating the 200K mark?
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i love this!!
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Good work Nico. I think some planet experience lucky image lessons translate over and some dont. So here goes: 1. don't be afraid to pump up the gain to help with shortening the exposure. Even at best 5% you'll be stacking so many frames that noise is nothing to fear. 2. I use ROI on my 462 to get highest possible frame rates on planets, but ROI wont be a factor with DSO. Thats because you won't be going anywhere near 100-500 fps (single figure millisecond exposures) where the transfer rates and usb speed begin to matter.
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I have been doing something similar the past 3 nights with messier 3. Using the new zwo 585mc pro and the celestron 8se with a 2000mm focal length. The results are mind blowing and I'm seeing things like never before. I'm use to using a full frame sensor so the results are insanely close up in comparison
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Thank you, Nico for this interesting video! Have you tried live stacking in Sharpcap directly ?