Sample images for the Contax Planar 50mm F/1.4 EOS conversion are being added I am working on a Photographer based review. This lens has all the benefits of the classical planar design, and full autofocus and auto aperture! More to come.

Here we have a very good review of UV and Polarizing filters by Lenstip. They even comment on the usability, and flare associated with each filter. All in all a very good test, and one that could save you a LOT of money!

UV Test Page

Polarizer Test Page