Hans Korremans wrote:
Re: EOS Vignetting with EF 20mm f2.8 USM and B+W 72 Circular polarization filter F-Pro the filter is thick / thin like any filter, but I combine it with a standard UV filter from B+W; would you think this could be the cause? Light fall off is not the case as NA used was mid range with the samples under discussion. ------------------------------------------------------------------------ ------------------------- Hans, The vignetting is from stacking the filters. One should not stack filters unless you absolutely have to. Just use one filter at a time and the problem will go away. If you need the UV & Polarizer combination Hoya makes a UV Multicoated thin Polarizer you can use in place of these 2 filters you are using. Peter K * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
