Just gotten the B+W CPL MRC. Unfortunately, it shows darkening of the corners when taken at 18mm. The edges disappears when moved towards tele range. Question is, is this normal? What causes it for the lens to behave in that way? Without a CPL, the corners are perfectly fine. When i screwed the CPL, vigininting occurs.
I'm using 72mm UV filter with a step up ring for 77mm CPL filter.
:dunno:
I'm using 72mm UV filter with a step up ring for 77mm CPL filter.
:dunno: