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05-08-11, 09:15 PM
Join Date: Aug 2009
Originally Posted by
1. Why are there three slots for filters on the plastic holder - is this so you can use more than one if desired, or is there a 'correct' slot to use with a single filtter?
You also use 2x ND plus 4x ND to give you the same as a 8x ND filter. ND filters are used to reduce the shutter speed for long exposures, used for water or cloud shots.
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