I can guarantee you the Hoya Pro1 Digital (slim type) doesn't vignette on the 10-22 and Canon 30D.
I hv a 20d and am choosing your recommendation for my 10-22 over the B+W slim CPL.
I intend to mount a cokin system with a Graduated ND over the polarizer. Will this do or any other advise to mount the GND filter? What cokin system should I use (holder size)?
Appreciate any advise. Thks.

