Difference between revisions of "Microprism"
m (cat: parts) |
(switching to clearer photo; added missing attribution & rights to 2nd pic) |
||
Line 1: | Line 1: | ||
{{Glossary}} | {{Glossary}} | ||
+ | |||
{{Flickr_image | {{Flickr_image | ||
− | |image_source=http://www.flickr.com/photos/ | + | |image_source= http://www.flickr.com/photos/camerawiki/5990804751/in/pool-camerawiki |
− | |image=http:// | + | |image= http://farm7.static.flickr.com/6020/5990804751_74720aec49.jpg |
− | |image_align= | + | |image_align= right |
− | |image_text= | + | |image_text= Microprism collar surrounding [[split-image device|split image spot]] |
+ | |image_by= Voxphoto | ||
+ | |image_rights= nc | ||
}} | }} | ||
− | 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 | + | |
− | + | 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 [[SLR]]s, often in combination with a [[split-image device]]. | |
+ | |||
+ | |||
{{Flickr_image | {{Flickr_image | ||
|image_source=http://www.flickr.com/photos/timmythesuk/464925262/in/pool-camerapedia/ | |image_source=http://www.flickr.com/photos/timmythesuk/464925262/in/pool-camerapedia/ | ||
|image=http://farm1.static.flickr.com/228/464925262_4c31272de3_m.jpg | |image=http://farm1.static.flickr.com/228/464925262_4c31272de3_m.jpg | ||
|image_align=left | |image_align=left | ||
− | |image_text=Olympus | + | |image_text=Removable [[Olympus OM system|Olympus]] focusing screen;<br/>microprism ring surrounds split-image center |
+ | |image_by=Tim Williams | ||
+ | |image_rights=nc | ||
}} | }} | ||
[[Category: Camera parts]] | [[Category: Camera parts]] |
Revision as of 16:52, 20 September 2011
Glossary Terms
Microprism collar surrounding split image spot image by Voxphoto (Image rights) |
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.
Removable Olympus focusing screen; microprism ring surrounds split-image center image by Tim Williams (Image rights) |