Difference between revisions of "Split prism"
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{{glossary}} | {{glossary}} | ||
| − | + | {{Flickr_image | |
| − | + | |image_source= http://www.flickr.com/photos/camerawiki/5990804751/in/pool-camerawiki | |
| + | |image= http://farm7.static.flickr.com/6020/5990804751_74720aec49.jpg | ||
| + | |image_align= right | ||
| + | |image_text= Split image spot (and microprism collar) when defocused | ||
| + | |image_by= Voxphoto | ||
| + | |image_rights= nc | ||
| + | }} | ||
| + | A '''split-Image''' spot, sometimes called a '''split image rangefinder''' or '''split-prism''', is an optical focusing aid sometimes incorporated into a [[reflex finder|reflex]] camera's [[ground glass]] screen. When the image is out of focus, the two halves of the image appear "split" with a offset between them. When in focus, the halves line up to form a single image. The split is typically horizontal, but sometimes diagonal. | ||
Split-image devices are often combined with [[microprism]]s. | Split-image devices are often combined with [[microprism]]s. | ||
| − | Split-image devices in focus screens should not be confused with the [[rangefinder (device)| | + | Split-image devices in focus screens should not be confused with the [[rangefinder (device)|coincident rangefinder]], fitted to most [[rangefinder camera]]s. |
[[Category: Camera parts]] | [[Category: Camera parts]] | ||
Revision as of 18:16, 30 July 2011
Glossary Terms
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| Split image spot (and microprism collar) when defocused image by Voxphoto (Image rights) |
A split-Image spot, sometimes called a split image rangefinder or split-prism, is an optical focusing aid sometimes incorporated into a reflex camera's ground glass screen. When the image is out of focus, the two halves of the image appear "split" with a offset between them. When in focus, the halves line up to form a single image. The split is typically horizontal, but sometimes diagonal.
Split-image devices are often combined with microprisms.
Split-image devices in focus screens should not be confused with the coincident rangefinder, fitted to most rangefinder cameras.
