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Old Nov 6, 2004, 4:50 AM   #7
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pclements wrote:
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What would be the effect of having both a UV & Polarizer on at the same time?
You don't gain anything... any piece of glass will filter out UV (a polarizer is one already)

What's bad:
1 - potential for vignetting at the wide setting since there's more thickness @ the rim
2 - more potential for flare, ie internal reflection between the different layers!
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