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P3D Helical Spinning
>> Unfortunately even thought the light from
this special polarizing filter is not circularly polarized, the camera
companies decided to call it a circular polarizing filter.
Actually, it is called circular polarization because the ray of light is
passed through the linear polarizer and becomes
polarized. when the polarized light passes through the retarder, it is
given a spin and moves/travels in a helical pattern
When the light is reflected from a specular surface, rotation reverses and
is stopped when passing back through the retarder.
Cheers,
RM
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