Lightnings taking a ride

by ceinmart

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Five-sided block of glass with mirrored surfaces used to reflect light from an SLR's mirror to the viewfinder's focusing screen. Heavier and more expensive than a pentamirror, but with better light transmission.

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2
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3answers
203 views

Which is better to use : Mirror or totally reflecting prism?

I'm designing a stereoscopic system to capture 2 images at the same time one for the right eye and one for the left eye. To take a photo through a reflecting system, which one is the best choice of ...
14
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1answer
881 views

What does the pentaprism/pentamirror do?

In an SLR, the light bouncing off the mirror goes through a pentamirror or pentaprism before being reflected to the viewfinder. However, it seems to me that it would be possible to project an image to ...