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10-18-2011, 11:48 PM   #1
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Hoya filters

can anyone help ? I recently bought 3 hoya screw on filters at a yard sale for next to nothing but the problem is i dont know in which photographic situation i would use them. The 3 filters are } 81A ,82A and one called DUTO. Any advice please.

10-19-2011, 12:59 AM   #2
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Have you tried Google?
10-19-2011, 11:48 AM   #3
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They are probably not that useful for digital cameras. The 81A was designed to allow you to use "tungsten type B color film" with "photoflood lamps". It lowers the color temperature for slightly redder tones. An 81B or 81C are stronger versions. The 82A goes the other direction, slightly cooler. You can do this on digital with white balance settings or in software. I don't know what a DUTO filter is, but strongly suspect it is for a DUal TOne effect.
10-19-2011, 10:57 PM   #4
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hoya

thanks for the info. Having taken your advice and googled it, the DUTO is primarily for portrait work as it creates a soft focus effect but as my pictures suffer with this anyway I dont think i will need to use it

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