Sprawdź proszę. Jestem ciekaw bo różnie na ten temat piszą. Najczęściej że jest albo-albo. Albo działa AF i nie działa pomiar światła albo działa pomiar i nie działa AF.Zamieszczone przez theremin
There are two types of polarizing filters available — linear or circular. Linear polarizers are more effective and less expensive than circular ones. But circular polarizers are needed with just about any camera that has a through-the-lens metering system, or autofocus.
The reason for this is that both of these systems use semi-silvered mirrors to siphon off some of the light coming though the lens. If that light is linearly polarized it renders either the metering or the autofocus ineffective. This means that you're going to have to buy circular polarizers unless you're shooting with a pre-1970's camera, or a view camera.
to luminous landscape - http://www.luminous-landscape.com/tu...larizers.shtml
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