Check out this link on UV filters. After a blurb on UV light and its effects, they test the best and score them according to UV ray reduction. One thing that they don’t test is durability… UV Filter Test

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