Understanding Canon EF-S, Nikon DX and similar lenses for small sensor digital SLR cameras
Canon, Nikon, Sony and most of the rest of the camera companies, plus the third party lens makers, like Tamron, Sigma, etc., all make two series of lenses, on designed for full frame digital SLRs and 35mm film cameras, and another range designed for use on their smaller sensor digital SLRs. But there is a …