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Linear vs circular polarisers

Started Dec 19, 2018 | Discussions thread
BBbuilder467 Veteran Member • Posts: 7,057
Re: Linear vs circular polarisers
1

Tom Board wrote:

In this article it discusses the reason linear polarisers don't work with many modern cameras that use TTL metering and autofocus:

In the article, the author Michael Reichmann states:
"The reason for this is that both of these systems use semi-silvered mirrors to siphon off some of the light coming through the lens. If that light is linearly polarised it renders either the metering or the autofocus ineffective. This means that you're going to have to buy circular polarisers unless you're shooting with a pre-1970s camera, or a view camera."

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. Since I am using mostly manual focus lenses, as long as the metering works a linear filter would be a good choice for me.

Thanks.

I've had no problem at all using both new or 30 year old linear polarisers with my Panasonic system. I can't tell the difference between the PL and CPL if I didn't know which was which.

The last I got was from Adorama because they had Hoya at bargain prices in 46mm.

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