Thanks Erwin,
Quote:
|
You used quite a bit of noise reduction on that one, no wonder with that kind of focal ratio...
|
Not at all. The only noise reduction was in the Sigma combination of the raw images. Even the sum of the dark-subtracted raws looked very smooth except for cosmic ray hits. Probably due to the fact that it was a very cold night. The camera was operating at -24C which I can rarely get it down to.
Quote:
|
Ever considered getting one of Jim Riffle's creations like the Centurion 18 inch f/2.8? ;-)
|
I have considered it but as usual it all comes down to money
