Quote:
Originally Posted by Peter Ward
Yes...it's PI's DBE tool. Doesn't quite nail the background gradients around the objects it masks....could also be I'm not applying if correctly too! 
When/if I get some more data I'm hoping not to push the background so hard to give a smoother and more even result.
A dark sky would make life so much easier |
I figured it was a masking issue or perhaps flats a tad off (slight mismatch with the darks and flats).
My CDK vignettes a lot even at dark skies but yes 10X worse in some light pollution. So near perfect flats and everything matched and even then testing them to make sure seem vital. Its one of the optical compromises the Planewave guys have made in exchange for lesser aberrations elsewhere. But it can be a pain.
At Ricks tutorial he mentioned not to do too many sample points for the DBE tool. Perhaps it works better before any permanent stretching as PI works on non linear adjustments for a lot of its tools and a stretch sounds like a permanent adjustment. Rick would know the best procedure. I think the screen transfer function to brighten then the DBE before stretching may be the go.
Greg.