Apparently, this user prefers to keep an air of mystery about them.
14 Why is 1:1 desirable for a macro lens? jan 31 '11
11 Why is depth of field affected by focal length? oct 2 '11
8 Why do two different cameras using the same settings produce photos with different exposure levels? may 26 '11
7 Are UV filters required for shooting film? jun 17 '11