Hi, I'm a newbie in DSLR and this is a newbie question...
I've read that when using a UWA lens (eg, Canon 10-22), adding a polarizer will cause vignetting or something like uneven polarization. In the market there are normal polarizer and slim profile polarizer (eg, Hoya "slim frame" CIR-PL or B+W CPL MRC "Slim"). Would using a slim profile polarizer avoid vignetting? But what about "uneven polarization" and btw, what is "uneven polarization"?
One usually use UWA lens for wide landscape capture and on a bright sunny day using a CPL is preferred but wouldn't it be a shame if a CPL cannot be used on a UWA lens in this case?
Anyone has any such experience and photo to share on the problem encountered using CPL on a UWA lens? Esp on "uneven polarizatoin" as vignetting is easy to tell.
Thanks very much!