Okay, this hobby is dangerous. I was looking for a circular polarizer for my 50mm lens (SMC Pentax-A 1:2 50mm) since glare has been a bit of a problem in some shots. Of course, now I'm looking at replacing the lens instead, since I can't find a filter to fit it, and reviews of it are rather mediocre. Any suggestions for a replacement lens? I'm looking for fixed focal length lens, good for general quick shots and macros that would balance well against my 80-200mm lens.