The Contax 645's reputation as one of the finest camera systems for portrait photography rests primarily on the remarkable abilities of one lens -- the Zeiss 80mm f2 Planar. Roughly equivalent to a standard 50mm lens in 35mm format, the Zeiss 80mm f2 combines ultra-shallow depth of field and dramatic bokeh with stunning center sharpness and detail. Autofocus, while slower than modern digital systems, is accurate and allows for fast-paced variation in a subject's pose and expression. Each aspect of the 80mm f2's handling seems carefully considered for portrait work -- for example, instant manual focus override in the autofocus mode gives the ability to use the AF as a quick pre-focus before fine tuning the focus point manually. The Zeiss 80mm f2's fast aperture also allows it to capitalize on the Contax 645's impressive 1/4000 top shutter speed for wide-open portraits even in daylight, Unique imaging capability and carefully-considered ergonomics have made the Contax 645 and Zeiss 80mm f2 constant tools in many wedding photographer's kits, even more than 20 years after the system's introduction.