Yes, a MASSIVE light grabbing SINGLE 8 minute sub.
I have 4 more I can lay on top to stack, but seems pretty darned deep and showy as a single 8 min sub. NO edit, apart from resizing. Difference to usual - I used a Skyglow filter
Pretty good Lewis, which LP filter are you using and where was this imaged from, which scope?
should be able to bring out very good details after processing
It's the SW ED100 I currently have for sale (potentially sold). Filter is a garden variety Orion Skyglow, 2" VISUAL filter (not photographic). A little too much green cast, but fixable. Seems the right wavelngth for the crud light around here.
Made the Horsehead pop out in red cloud on the first image - no need to fiddle
Nice work Lewis, I think I prefer the original single frame tho.
Something happened to the stars in the stack and overall it looks as tho the register wasn't quite right.
On zoom, I agree Simon. I have since taken each of the CR2's and tweaked them in PS 5.1 RAW tools, and will try a restack - the first stack by DSS revealed more like airy discs for stars than stars,, and visible field rotation patterns (and thta is set at a 50% detection rate to minimise sampling noise or faint stars).
The first single sub at top was taken with Canon long exposure noise reduction OFF (CMOS showing 24°). If I use LE noise reduction ON with the Canon, there is no need whatsoever to use darks (and usually not even flats!) in DSS. Just takes twice as long, meaning a decent stack of Eta Carinae complex is probably 3 or 4 nights work. The longer between sub wait is frustrating, but in my opinion after this trial, WORTH it, as I honestly believe Canon does a better dark reduction than DSS does.
