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| p.1 #6 · p.1 #6 · Circular Polarisers - how different can they be?! |
I used the Cokin sprocketed filter in a Cokin holder for several years before moving to a threaded B+W. I had no compliant about the polarization performance of the Cokin, even after using the B+W. The big difference, and the reason I made the change, is that the Cokin was very prone to flare and reflections from the back surface. the B+W is a big improvement in that respect. So, if you were using the same Cokin as I was, your observations surprise me.