Unfortunately I can not recommend the readily Hoya Pro1 Digital Filter (58mm thread). I use a good piece on a AF-S Nikkor 50mm 1: 1.4G, but this has one major drawback: The lens cap is not properly. Unlike other filters (such as the Kenko Pro1 D) seems to be the Under this filter to be a bit too flat, so that the locking mechanism of the lid can no longer engage properly. Where this would be yet to cope with, has eased after a short time the glass slightly. Here I must stress that I the Filters have never "fucked hard" have. For that kind of money I expect something more attention to detail and better processing. The already mentioned by other users problems with the difficult cleaning I can not quite understand, with a Lenspen is no residue to clean the glass.
