Free (almost) build it yourself Circular Polarizing Filter

BobW

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Wilmington, NC
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While I don't have a "this is exactly how to do it for camera x", I found a source for really good performing CPL filter material. I mean, flip this stuff so the correct side is facing the camera, and rotate as appropriate, and it makes the reflections completely disappear.

What am I talking about, and where to get it? The film in RealD 3D glasses at the local theater. https://en.wikipedia.org/wiki/RealD_3D The bins are full of discards (for recycling) for the taking. All you need to do is get it in front of the lens rotated as appropriate. "Which side" matters too. Start with the film still in the frame, but just deal with one of the "lenses" for ease of positioning during experimentation.
 
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