Hello Nikon fellows, I've read that the vignetting caused by polarizers on wide angles starts at 28mm. I have a Nikkor 28/2.8 AIS + HN-2, and I'm looking for a 52mm circular polarizer which will not cause vignetting and still use a hood. I would like to know if someone with a 28/2.8 AIS has experienced vignetting when using the B+W circular polarizer on it. Will the HN-2 fit on that filter? Will it the combination Filter + HN-2 cause vignetting? As the most probable answer is yes (or a big YES). I've studied a few options with B+Ws filters, and I think I've found a two: - Kaesman Circular Polarizer for Wide Angle + HN-2 (expensive Kaesman; is there any non-Kaesman? combination will vignet?) - Oversized Filter (is there any Circular Polarizer in his category? should be used without hood, but why?) Any suggestions or comments? Would the Nikon Circular Polarizer work better? Thank you very much, Sergio Lopes.