CHG_CANON wrote:
Basil - the debate on protective filters will never end... If you're on the side of using them, you should consider whether your lenses will be used for film or only digital cameras. I've been recommending B+W XS-Pro Clear MRC-Nano for digital only use. Within the B+W brand, there are other options, but stick with their MRC Multi-Resistant Coating.
Also the built and thread quality are excellent.