do clear polarizing filters exist ?

[Tmoose]

There are some light gray ones on Amazon etc.

Is a clear polarizing filter even possible?

thanks,

Dan T

 

[3DDave]

Since they block the light that doesn't match their polarization they will not allow all the light through.

 

[IRstuff]

Essentially by definition, a polarizing filter removes 50% of light impinging on it; a second perpendicular one will remove the remaining.

TTFN (ta ta for now)
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[3DDave]

About stacked polarization filters: Bell's Theorem;

https://www.youtube.com/watch?v=zcqZHYo7ONs