It has been partly clear the last two nights here in North Alabama with some scattered clouds and haze that came and went, but I really really wanted to keep working with the new replacement lens on my TS 130 f/7 so I set up the rig in my backyard redzone and got ready. The Moon was nearing full so I figured a narrow band image would be best. I only have one narrow band filter right now. It's a Chroma 5nm Ha. It's like a magic trick! When the first sub popped up I could not believe how much detail was getting pulled out of such a bright sky!
This is a stack of 52 x 5 minute subs using my ASI1600mm pro at unity gain. I pushed the stretching rather hard. Maybe a little too much, as there is some noise. But I really wanted to get all the dark dusty areas to show up.
I was using the TSFLAT3 1.0x flattener that I bought with the scope and I think it is doing a great job on the corner stars. This is the full image cropped just a little to get rid of the stacking artifacts and resized for posting. I am curious if anyone notices some very faint horizontal banding in the bottom left. I'm not sure if I'm imagining it or if there is some there? I would alsolike to know if I perhaps made the dark dust blobs too black. They almost appear a bit artificial to my eye...I did use flats and darks for calibration. C&C are most welcome!
Maybe could have used a little less focal length on this target too...lol!
Thanks for looking and cs!
Edited by John Miele, 06 April 2020 - 08:55 PM.