Difference between revisions of "Rangefinder camera"

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Revision as of 11:38, 2 October 2006

To have a list of rangefinder cameras, see the Category: Rangefinder.

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Rangefinder cameras are those that focus using some sort of coincident-viewing distance-determination mechanism. The most common form, as used in cameras like the Leica and other classic small 35mm cameras, is to use a prism and mirror arrangement between two viewing windows. Small adjustments in the angles of the prisms will align two superimposed images -- when the images are aligned the distance can be determined accurately by a simple mechanical cam. With a large enough rangefinder base, this type of rangefinder can offer extremely accurate focusing. Such rangefinders have been used in 35mm cameras such as those made by Leica, Canon, Nikon, and others for many years and also in larger-format cameras such as "folder" medium format cameras, "Texas Leicas" like the Mamiya 7 and even some early Polaroid cameras.

Other styles of rangefinder do exist, such as the electronic variety found in the Contax G1-G2 cameras.

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Glossary Terms