All
I seem to have a problem with flats. I use a Lepus reducer on my LX200R and is shows some pretty good vignetting. So flats are very necessary. Normally I dont seem to have issues but on the Sombrero I seem to be getting a sort of bas relief effect when I combine
I've uploaded examples of:
- Flat master - sky flats (20 subs)
- Sombrero Raw - uncalibrated
- Somebrero - Calibrated
- Sombrero - Mean combined
I've tried several with ADU ranges from 15K to 50K - the best I can seem to do is around 45K, though I normally use 24K with the 8300 cameras
Thanks for any help
Dan