Term - Pentaprism
|Pentaprism||SWPP Photographic Glossary|
Tuesday 23rd October 2018
A multi sided glass prism housed in the roof of an single-lens reflex camera so that the image that's seen be the lens can be viewed through an optical viewfinder above the lens. The light enters through the lens is reflected up by a reflex mirror to the prism and across to the eye.
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