Difference between revisions of "Microprism"

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{{Glossary}}
 
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|image_text=Viewfinder image with microprism ring in<br>the centre, around a [[split-image device]]  
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|image_text= Microprism collar surrounding [[split-image device|split image spot]]
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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 [[SLR]]s, often in combination with a [[split-image device]].
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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 "sparkle" or "shatter" compared to the surrounding plain [[ground glass|ground-glass]] screen. Microprisms are often used in [[SLR]]s, often in combination with a [[split-image device]].
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|image_source=http://www.flickr.com/photos/timmythesuk/464925262/in/pool-camerapedia/
 
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|image_text=Olympus focus screen with<br>microprism & split-image
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|image_text=Removable [[Olympus OM system|Olympus]] focusing screen;<br/>microprism ring surrounds split-image center
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[[Category: Camera parts]]

Latest revision as of 14:42, 19 April 2012

Glossary Terms

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 "sparkle" or "shatter" compared to the surrounding plain ground-glass screen. Microprisms are often used in SLRs, often in combination with a split-image device.