Google| Subject | Lenses and sharpening |
| From | Alfred Molon |
| Date | 09/13/2014 09:23 (09/13/2014 09:23) |
| Message-ID | <MPG.2e7e0f5521a26e5d98cc08@news.supernews.com> |
| Client | |
| Newsgroups | rec.photo.digital |
| Followups | Savageduck (24m) > Alfred Molon Floyd L. Davidson (4h & 32m) > Alfred Molon Kevin McMurtrie (15h & 43m) Martin Brown (1d, 23h & 48m) |
Sometimes a soft lens can be very effectively compensated by some unsharp mask in post processing and you get a sharp, natural looking image.
But sometimes no matter how much sharpening you apply or what parameters you choose, you get that unnatural, "sharpened" look.
It probably depends on the unsharpness of the lens, its (spatial) frequency response or whether the sharpness is caused by the lens glass itself (i.e. lens not being sharp enough), inaccurate focus or some motion blur.
For instance I have a 70-300 lens which at the tele end generates a bit soft images, which however respond well to unsharp masking in post- processing. But that's not the case for the another lens I have (a mid- range one).
Has somebody analysed this (i.e. how to best sharpen an image, what unsharpness can be eliminated in post-processing)? Is there perhaps some web page with details? -- Alfred Molon
Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site
Floyd L. Davidson (4h & 32m) > Alfred Molon
Kevin McMurtrie (15h & 43m)
Martin Brown (1d, 23h & 48m)
09/13/2014-
