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It's all coming back, it's all coming back to me now

Posted By: Chuck Bower
Date: Friday, 13 April 2012, at 12:00 a.m.

In Response To: Camera setups for videorecording matches? (Taper_Mike)

Have you seen Justin’s rig? He has a PVC framework that might lend itself to stretching a semi-transparent cloth across the top, just above the camera. Such an awning might be the easiest way to block unwanted overhead light. I first mentioned this idea above.

No, but what you say makes a lot of sense because diffusing the light source (with an highly transmittive cloth awning) should take care of the problem. Nice idea!

BTW, I mentioned increasing the angle of reflection but then I recalled Brewster's angle which the following plot shows the optimal angle of reflection -- where the best rotation of the perfect polarizer will completely eliminate reflection, in theory:

http://assets.newport.com/web600w-EN/images/1290589.gif

For polystyrene (which I'm pretty sure is what modern precision dice are composed of), the Brewster angle is about 58 degrees.

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