B + W 67mm Kaesemann Circular Polarizer Filter in Wide Angle Slim Mount, MRC Coated Glass.

2012-10-12T21:00:00

This is a superb polarizer filter. It is very thin, especially for a polarixer; this means no light cutoff in the corners except on very wide angle lenses. There is one downside to the thiness, however: There is no room for a front thread, and therefore lens caps cannot be used. Lens hoods can be used. The lens cap is not a problem for me, but buyers should be aware of it.

Nature S.

2010-01-09T19:00:00

Working as expected

No_prob

2009-07-20T21:00:00

B+W is one of the three German filter makers I trust. I own Japanese lenses and cameras, but their filters are cheaper and have let me down, contributing to flare and contrast loss. Worse, aluminum rings are hard to get off in various temperature and humidity conditions. A good filter have a machined knurled brass rings with unstressed glass so the glass doesn't bend when the temperature changes. Brass doesn't stick. No need for a filter wrench. Until you've owned one, you don't know what you're missing. Don't put cheap optics on a good lens.

Craig H.