Difference between revisions of "Microprism"
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Revision as of 02:12, 18 December 2008
Glossary Terms
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| Viewfinder image with microprism ring in the centre, around a split-image device |
A microprism is a focusing aid made of an area very small prisms built in to a focusing screen; this causes a slightly out-of focus image to look much fuzzier than on a plain ground-glass screen. Microprisms are often used in SLRs, often in combination with a split-image device.
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| Olympus focus screen with microprism & split-image |
