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Linear vs circular polarisers

Started Dec 19, 2018 | Discussions thread
tt321
tt321 Forum Pro • Posts: 13,854
Re: Linear vs circular polarisers
3

Michael Benveniste wrote:

Tom Board wrote:

Can anyone here confirm that this applies to mirrorless cameras? I'm assuming it does, but not knowing the technical aspects of how the metering works in my GH4, I just want to make sure.

According to Panasonic UK, you should use a circular polarizer, but I admit I don’t understand why:

https://www.lumixgexperience.panasonic.co.uk/lumix-academy/using-lens-filters-and-converters/#.XBrtIqROmEc

The reason is very simple. All Panasonic-branded PL's are CPL's :), which is partly due to the below.

New linear polarizers are fairly scarce

CPL's have become the commodity items because of years of AF SLR market domination. Now that mirrorless no longer requires C, it may take an equally large number of years for linears to come back, if at all.

So price-wise, there is no reason to buy a new linear, but there is equally no need to buy a CPL if you already have an old linear around.

Metering in mFT does not use a mirror to divert light. It uses the imaging sensor. So there is no need for C.

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