Hello, I recently started photography as a hobby and I need some advice. I have an Olympus OM10 with the classic 50mm f/1.8 lens. I am happy with my camera and I just need a wide angle lens to get these photos that I can't get with the 50mm. I'm thinking about getting the 28mm f/2.8. It seems to be reasonably priced. I also have a Hoya linear polariser (the regular, not HMC or Pro). So, has anybody used this lens? Will I have a problem with vigneting if I use it with the polariser on? Is it sharp, or is it kind of... blury? Thanks in advance!