D5D filter problem...

[ahten]

I just bought D5D, i found dark clound at the corner of the picture during i using 18mm (18mm-75mm) + Polarize filter. Why ? I want buy protection filter, UV good or skylight good? difference?

Need Help! pls.

Thanks.

 

[smtan24]

ahten it sounds to me your Polarizer is causing it. When I was using my cokin Polarizer it would cause a bright spot to occur at the corner.

 

[Drudkh]

the polarizer filter is too thick, that's why at 18mm you get that result, the filter is blocking. sell away and buy a thinner polarizer.

 

[rTwin]

hmm wat f-stop were u using? cuz i remembered i had optical vignetting wif the kit lens at 18mm at the largest aperture (even without my UV filter) and had to stop down a few stops for it to disappear.. lol the only reason i noticed it was cuz i was taking a shot of someting on a white wall, so it became pretty obvious ;p

u can find out more about vignetting here..