I have found that my Nikon 60mm Micro AF-D changes aperture from 2.8 to 3.2 when used with a D90. I have tried both A and M mode. Is it by design? Why? I intend to buy Nikon 50mm 1.4 AF-D, but it ...
What is the point of buying the 85mm DX AF-S f/3.5G for 476$ versus the 60mm AF-S f/2.8G for 540$. It's 64$ to get f/2.8G over f/3.5G, it's close to be the same focal on a DX 85 vs 90 (1.5 X 60) and ...