Thanks everyone for kind comments.
Quote:
Originally Posted by gregbradley
That is amazing resolution John. This new lucky seeing imaging approach really is paying dividends.
Greg.
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Yes Greg, the pillars I spent the most time on with over 5200 2.5sec exposures in good seeing. Registax would include plenty of poor images amongst the best so I went through it by hand stacking nearly 2500 sharp subs, it took several hours - very boring.
Quote:
Originally Posted by Atmos
Incredible resolution John!
I’ve managed close to your Pillars but it’s that final hard contrast and resolution that has escaped me.
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Resolution is really down to seeing, I spent many nights and threw away hours of images once better seeing came along which it eventually did.
In PShop I use Image-Adjustments-Shadow/Highlights which really lifts the dark detail more than the bright detail and there is a contrast slider, if your image is not too noisy it gives good results using layer opacity slider to suit. ASI cameras do have low noise.
Quote:
Originally Posted by SimmoW
Great to see, nice images John! I'm convinced such lucky imaging will become more popular and successful. I have loaned out my asi224 to a friend but once I get her back and the adapter I need arrives, I'll be doing some LI myself.
Can you tell us the exposure details, e.g. number of subs and gain?
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Yes the exposures may vary from 2.5 to 3 secs gain full depending on the breeze except for M8 which is much brighter at 1 sec exposure. With Triffid bright stars I used a half sec exposure and a 100 each RGB.
M8 UHC-1000x1sec RGB-450/225/225x1sec.
M16 UHC-2490x2.5sec RGB-120eachx2.5sec.
M17 UHC-2390x2sec RGB-150eachx2sec.
M20 UHC-2550x2.5sec RGB-110eachx2.5sec.
I collected many more to get the finished image but had to exclude the breeze damaged images as well as the poor seeing images.
Regards, John.