![]() ![]() Some sophisticated 20th century cameras with direct viewfinders had coincidence (split-image) rangefinders, initially with separate windows from the viewfinder, later integrated with it they were called rangefinder cameras. Viewfinders often show lines to indicate the edge of the region which would be included in the photograph. The error varies with distance, being negligible for distant scenes, and very large for close-ups. Parallax error results from the viewfinder being offset from the lens axis, to point above and usually to one side of the lens. A declining minority of point and shoot cameras use them. A zoom camera usually zooms its finder in sync with its lens, one exception being rangefinder cameras.īefore the development of microelectronics and electronic display devices, only optical viewfinders existed.ĭirect viewfinders are essentially miniature Galilean telescopes the viewer's eye was placed at the back, and the scene viewed through the viewfinder optics. ![]() Viewfinders are used in many cameras of different types: still and movie, film, analog and digital. Most viewfinders are separate, and suffer parallax, while the single-lens reflex camera lets the viewfinder use the main optical system. In photography, a viewfinder is what the photographer looks through to compose, and, in many cases, to focus the picture. Viewfinder of a Nikon ZOOM 300 AF (35mm film) camera ![]()
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