Here is last night's Rosette, NGC 2244.
As usual, H-alpha modified Canon 350D on Tak Epsilon 180ED. This time with CLS and IR/UV filters.
59 x 5 min at ISO 800 (out of 72)
6 x 150sec at ISO 400 (out of 12)
Passing high level cloud made some of the subs unusable.
(http://www.markshelley.co.uk/Astronomy/2011/rosette29112011small.jpg)
Larger version here (2/3 scaled):
http://www.markshelley.co.uk/Astronomy/2011/rosette29112011.jpg
I'm finally getting a chance to image last Winter's target list!
Mark
Now that is smooth Mark, I can't see any noise at all.
Was just thinking maybe you could bring out a bit more contrast, though we all have our own preferences.
I know what you mean about the passing cloud, I have to discard some of my subs from last night too.
Carole
I have to agree with Carole. Maybe a tinge more contrast and perhaps lighten the background a tad to bring out more of the surrounding nebulosity if the image can take it. Even so it's still very good with nice sharp stars across the image.
I left my system imaging this the other night but there must have been a sharp drop in temperature after I left it as nearly all the subs were defocused :(
Lovely Rosette Mark, I would also say a slight lighten on the background, but we all have different tastes
Thanks for the constructive feedback.
What about this version instead?
(http://www.markshelley.co.uk/Astronomy/2011/rosette29112011v2small.jpg)
Larger version:
http://www.markshelley.co.uk/Astronomy/2011/rosette29112011v2.jpg
I think I prefer the first version Mark from the background point of view.
Carole
The first is best for me also. To my eyes the second looks a little anaemic by comparison (rightly or wrongly)...
Nice image Mark. I prefer the first one.
Julian