Quote Originally Posted by neuroanatomist


if I was shooting on a beach with crashing breakers and lots of salt spray, and wanted a CPL to cut the glare or an ND to blur the water with a long exposure, I would just screw on the second filter, rather than removing he UV filter and needing to clean off the front element later. Then, if I needed to keepshooting with that lens once I left the beach, before I got a chance to properly clean the UV filter, I could just remove it and keep shooting.
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Exactly! Here's a sample:





Canon 50D + Canon 10-22 + Kenko slim UV + Hoya Pro1D slim CIR POL


You don't want me to remove my UV and replace it with CPL on THAT location would you? [:P] And oh, I'm well aware of the vignette (atleast after I learned to stop at 12mm instead of 10)