Here’s the full list of gear Canon will announce on September 5
- By stevelee
- EOS Bodies
- 429 Replies
A circular polarizer is a stack of a linear polarizer with a quarter-wave plate behind it, the latter circularizes the linearly-polarized light, which eliminates the problem of linearly-polarized light interacting with a beam splitter where the angle of polarization will affect how much light is passed into each resulting output (on and off-sensor phase AF, but also the dedicated metering sensor in a DSLR, are behind beam splitters).
http://www.bobatkins.com/photography/technical/polarizers.html
Thanks.
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