Don, the 2nd son Loc: Crowded Florida

Thank you, I was wondering the same thing.

PGHphoto Loc: Pittsburgh, PA

Polarizers are not 'cumulative'. Contrary to what seems logical, multiple polarizing filters have a strange way of interacting. If two polarizing filters are set 90 degrees out of phase, virtually no light passes through. (CPL 'filters are actually 2 filters that rotate on the same axis) . If a third filter is placed at a 45 degree angle between the 2 that are oriented at 90 degrees to each other, light actually will pass through all 3. This says it better than I can https://www.youtube.com/watch?v=zcqZHYo7ONs . Much more predictable to use ND filters.

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Non-polarized light that enters a Linear Polarizer
remains fully polarized as it exits. That is why a
linear polarizer is sometimes troublesome to the
camera components that rely on beam splitters.

If light exiting a linear polarizer WERE ordinary
nonpolarized light, then this whole issue of what
cameras have The Problem would not exist. If the
light exiting EITHER a CPL or an LPL were alike in
the sense of BOTH being non-polarized, then why
would it matter which to use for which camera ?

I am soooooo amazed at the incredible bumbling
and bungling around a very simple issue. I even
heard [elsewhere] from a verrry insistent "Online
Expert" who INSISTED that "circular" is ALWAYS
better becuz that means it's round and it rotates,
so it can be adjusted to maximum effect ! IOW,
to him, circular is the opposite of rectangular.

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RWR Loc: La Mesa, CA

Both filters do in fact freely pass non-polarized light. Polarized light, as that reflected from shiny non-metallic surfaces, may be either passed or blocked, depending upon its angle and the rotation of the filter. There will often be a combination of both types of light but, again, non-polarized light will be passed. I personally dislike using filters of any type, and try to avoid polarized light.

Leitz Loc: Solms

Even someone who never heard of a polariser will marvel at that statement! Not much different than saying red light remain blue as it exits a pane of clear glass.

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ROTFLMFAO


All you online egg spurts can keep on keepin on.

Nothing too see here ....


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