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Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Robert May on December 19, 2001 21:03:31 UTC |
You really need to model these systems to find out how much light is blocked from the focal plane. I will note that you will lose about 5-10% of the light every time you bounce the light off of a mirror. You will also lose a little bit of contrast (depending upon the quality of the surface of the mirror) with each bounce but that isn't much. |
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