James Markus Offline Upload & Sell: Off
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p.2 #2 · p.2 #2 · Need some diagnostic help! WARNING big photographs! | |
Stefan, All of these are shot wide open. I know zooms can be wonderful lenses, but usually there is a trade-off in image quality in a zoom versus prime lens comparison. Now, you can shoot in RAW, and apply the chromatic aberation profile correction for your lens in Adobe Camera Raw. This should at least illustrate what the maximum resolving power of your lens is - wide open. An easier focus test would be to stop down to f5.6 - that should correct most CA in most lenses. I would expect the image focus quality to improve. Also, I'm not one to believe that AF correction adjustments are likely to work at many different focal lengths. If you think about - the lens is reconfigured for each focal length setting.
Years ago, I ran into a similar dilemma with my 70-200mm f2.8 afs vr version I. At times ,wide open, it seemed great, and other focal lengths...not so much. Usually, I used the zoom at near it's maximum focal length (200mm). So, I tried a
Nikkor 180mm f2.8 AF and discovered that the prime constantly had superior image quality. I sold my zoom - in fact most of my zooms lenses are gone.
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