Digital Cameras

Bridge cameras lack the mirror and reflex system of DSLRs, have so far been fitted with fixed (non-interchangeable) lenses (although in some cases accessory wide-angle or telephoto converters can be attached to the lens), can usually take movies with sound, and the scene is composed by viewing either the liquid crystal display or the electronic viewfinder (EVF). They are usually slower to operate than a true digital SLR, but they are capable of very good image quality while being more compact and lighter than DSLRs. Line-scan-camera based integrated systems, therefore are usually designed to streamline the camera s output in order to meet the system s objective, using computer technology which is also affordable. This camera also used Nikon F-mount lenses, which meant film photographers could use many of the same lenses they already owned. Live-preview cameras may be compact or subcompact, or the larger and more sophisticated bridge cameras. The high proportion of green takes advantage of properties of the human visual system, which determines brightness mostly from green and is far more sensitive to brightness than to hue or saturation. The first analog camera marketed to consumers may have been the Canon RC-250 Xapshot in 1988. A notable analog camera produced the same year was the Nikon QV-1000C, designed as a press camera and not offered for sale to general users, which sold only a few hundred units.

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