One of the most popular 35mm film SLR systems thanks to the extensive lens lineup: from fisheye and ultra-wide angle to super telephoto lenses, and also special-purpose macro and shift lenses. Canon FD optics represents the quality and craftsmanship that helped make Canon world's leader in 35mm photography.
Compactness and handling ease are two vital characteristics of Canon's lenses. The FD "new" design made them even more streamlined as well as lighter. To achieve this, the breech-lock ring of the older lenses was eliminated and the standard filter diameter reduced from 55mm to 52mm.
Quality and performance also serve to distinguish FD lenses from those of other makers. Each lens is perfectly reliable, providing the optimum resolution and color reproduction. Special materials and technologies such as aspherical and fluorite lenses and Ultra Low-Dispersion glass are utilized.
Due to shorter flange focal distance, Canon FD lenses cannot be adapted to Canon EOS digital SLR cameras (and any other digital SLR cameras), but they are adaptable to digital mirrorless cameras.