Thank you for your help. I believe that UV filter caused the problem. I used B+W 77mm UV Haze 010 Glass Filter and I am not sure if it is fake one. When I took off the filter, the dark corners had gone. I will try some other filter to see if it has same problem.<div></div>
dark corners when using nikkor AF-S VR 70-200/2.8 with D3
in Nikon
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