Hi all, Can anyone tell me what (if any) difference using a stepping ring will make? I have a few filters for my standard canon 50mm lens (52mm diameter) and im in two minds whether to get a step ring to use the same 52mm filter on my tele photo lens (58mm diameter). I also have a smaller telephoto that is 62mm diameter. Basically how much of a difference in diameter can a stepping ring manage? At some point its got to start interfering with the shot. Obviously if id got a larger filter, i wouldnt have this problem becasue using it on a smaller (diameter) would not make any difference at all. But thats the beauty of hindsight! Never think of it til its too late!