- f22 is too high for a sharp skyline. defraction kicks in at >f16 in big way on 1.6x format (20d, 30d, 40d,50d, rebel). f22 is also not needed at f10. At f10 5\'toinfinity ocurrs at f11.
- most lens are sharpest at 2 stops up from wide open which is likely around f8 or f11
- most zoom lens are sharpest at the middle (16mmm of 10-22) of the range
- if you are focussing close, it woudl be sharper if you were focussing further away
- use tripod and mirror lockup and a remote shutter release
So for sharper, use tripod, remote shutter release, mirror lockup, focus nearer to infinity, move to f11, and back up to use 16mm. Possilbly use f8, for even sharper. Maybe try both and see which is better.
faster shutter will not make sharper unless there is pollution or fog moving between you and the buildings.
The only other thing you can do is get a better camera or a better lens. The lens is likely to be more important than the camera.
Scott
Dec 08, 2008 at 07:27 PM
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