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August 1st, 2013, 11:37 AM
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Regular Crew
Join Date: Dec 2004
Location: Henderson, NV
Posts: 177
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ND Filter Settings GY-HM 600?
Can anyone explain what the ND filter designations mean? 1/4, 1/16, 1/64 I'm guessing they are two stops apart. How do they correspond to the screw-on filters?
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