Multi Coated Circular
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How do you avoid the dark band in your pictures when taking a wide angle shot?
I have a Tokina 12-24mm wide angle lens. Does anyone know how to avoid the dark band across your pictures? Does it have something to do with using or not using a circular polarizer? Lastly, what's better, a regular circular polarizer or a thin, multi coated circular polarizer?
You pinpointed your problem. You can seldom, if ever, use a polarizer with a very wide angle lens. A polarizer filter actually only functions in a narrow band of light, and a wide angle lens goes beyond the effective range of the polarizer, thus you get the ugly dark band. You will have to not use the polarizer with that lens... or at least not use it when you are at the wide end of the lens range.
There is no difference as to the banding if you use a thin mount or regular polarizer. The thin mount is only to help stop vignetting in the corners with a wide angle lens, but in most cases you will have the banding with the polarizer on a wide angle lens, so using the thin mount filter to try to stop vignetting is not really the problem and the point of using a thin mount is pretty much moot.
steve
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