Modular design 6×4.5 format autofocus SLR with interchangeable Film Magazines, screens, and a new line of autofocus lenses. Built-in autoexposure Prism Finder (P, Av, Tv, M, X, and T exposure modes plus A, S, and A-S auto-shift metering patterns) and Power Drive Grip, plus infrared focus assist, new TTL flash metering technology, metal focal plane shutter with max shutter speed of 1/4000 sec and flash sync at 1/125 sec, LCD data panels on board for both the camera body and the film back.