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Old May 19, 2008, 5:38 PM   #1
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always wanted to know

do you take off your protective filter when you are going to use a polarizer filter or do you use them both

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Old May 19, 2008, 6:07 PM   #2
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Always take it off. Adding a second filter can do two things - first, it can cause vignetting. Second, it can cause distortions and flare because you are adding extra elements and distance between them.
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Old May 20, 2008, 4:57 PM   #3
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I use a Cokin Filter System and use both the Polorizer and a Skylight 1A as well as a Grad Gray ND filter for landscapes. For close work and birds I use no filter at all!

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