|
Gee whiz I think this discussion has gone off the rails a bit. Sombrero is a small galaxy, the elliptical is large but the spiral is 1/3rd the size of the Milky Way. So your image is not "soft". You've gotten depth, great colour with very low noise and a nicely detailed image.
There are techniques like multi layered Decon that can help but as you know and many have commented, heavy sharpening techniques don't come free. There is usually some damage. I think the best processing choice is to keep it looking natural, do some sharpening/contrast improvement just before it becomes noticeable and then that's the limit.
So don't falsely conclude you should only do faint objects as this is a stand out image. As you say longer focal length scopes are heavily affected by seeing. I just did some more time on the Sombrero myself over the weekend to add to mine. It was softer than the original data which was taken on better seeing nights. Seeing wasn't bad just not as good.
On my CDK17 I have had seeing affect it so much that when the seeing was bad I could not even focus the scope as it would go in and out of "focus" even when I had not changed the focus at all.
Greg.
|