CPL recomendation

On this site, they tested several CPL:

http://www.lenstip.com/115.1-article-Polarizing_filters_test_Introduction.html

Personnaly, I have a Marumi DHG Super Circular P.L.D (from eBay) for my 10-22 (crop body), 17-40 & 24-105.
Works fine without vigneting.
Sample:

Good luck.
--
Philippe

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