"Hans Korremans" <[EMAIL PROTECTED]> wrote/replied to: > >I am suffering vignetting in four corners of the image with the following >combination: EOS3, EF 20mm f2.8 USM and B+W 72 Circular polarization filter >F-Pro. Removing the (original) lens hood doesn't help and the filter is >visually clean (holding the filter againts the light) besides some minor / >transparent and cristal like contamination when I look through the viewer, >most critically. So little that I cannot imagine this is the root cause. > >- Anyone of you know what this is or might be? >- The filter / lens combination seems OK or am I wrong?
You got any samples online? Unless that filter is very thick, and I can't think of why it would be, you should not get vignetting. Perhaps you are seeing light falloff. Jim Davis Nature Photography http://www.kjsl.com/~jbdavis/ * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
