The small, metal Nikon Coolpix S550 is part of Nikon's S-line, designed to be premium quality compact digital cameras. The S550 model includes a 10 megapixel sensor and 5x zoom lens, Nikon's usual 15 scene modes and true electronic image stabilization. Features such as smile detection shutter release, in-camera red-eye reduction and a warning that notifies you if your subject's eyes were closed are aimed to help consumers catch the moment they want. Ergonomics and menu control generally receive kudos from reviewers, although start-up and shot-to-shot speeds have been described as slow by current standards.