Thanks, the thread size is a typo, I meant 77mm.
Funny, I searched the forum and came up with just a few threads that basically discuss the brands of polarizers.
I want B+W.
Perhaps I should ask this:
When would one opt for wide glass polarizer? What's the difference between Kaeseman vs. non Kaeseman. Why would I want a multicoated polarizer?
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Maggie,
You need a thin polarizer when the lens/camera combination is on the verge of vingnetting and you don't want a thick polarizer to be the cause of vignetting. For example, a 17-40 zoom on a 1.6 crop camera has a considerable margin from causing vignetted images. A standard polarizer will suffice. Put that same lens on a full-frame camera and you need the thin polarizer to prevent corner vignetting.
Kaeseman means that the edges of the filter are chemically sealed (encased). Supposedly these will hold up better under extreme environmental conditions. Optically there is no advantage. I have these, but have to admit I don't believe any normal user would ever get any benefit from this feature. I over-bought.
Multicoated cuts surface flare drastically. You absolutely need it to preserve the performance your lenses are capable of. This is essential.
Hope that helps.
