mdisen Offline Upload & Sell: Off
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p.1 #1 · p.1 #1 · Unsharp images with A7r and Macro lense--why? | |
I am using a Sony 100 macro f2.8 Alpha A mount lens on a Sony A7r with a Sony adapter. I am shooting closeups of flowers, doing focus stacking with 6-8 Images. I am also using a Sony 5 inch LCD monitor to help focusing. The images look sharp on the monitor and focus peaking verifies this on each frame in the sequence. However, after stacking in Photoshop, the images are not sharp—see attached sample and look at 100 % .
When I use my Sigma 50mm Merrill—the stacking result is razor sharp. This may not be a fair comparison, but I do expect much sharper results using the Sony Macro.
Could focus shift explain the above result?? Any other explanation? I do not understand how the image appears sharp on the camera LCD and viewfinder, as well as the Large monitor but the result is so unsharp, even with stacking.
I am aware of the vibration issue with this camera but the degree of unsharpness I am seeing is much more than the samples posted demonstrating this problem--so I believe I am seeing something else.
I did discuss the problem with B+H and they suggested I exchange the lens and that is in the works.
MDIJB
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