Polarizing Filters...

Started Aug 5, 2011 | Discussions thread
John Bean (UK) Forum Pro • Posts: 18,035
Re: Polarizing Filters...

Martur wrote:

How come that pol filters typically have a transmission of about 75% ?

They don't - they have a transmission of maybe 25% give or take.

Or to put it more conventionally, they lose at least one stop of light (50%) and perhaps as much as three (87%), typically about two (75%).

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John Bean [GMT+1 aka BST]

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