| http://www.w3.org/ns/prov#value | - 9..................ND512..............................1/512th10................ND1024.............................1/1024th (actually rounded down to 1/1000)( 2 )Now the likes of B+W, Helopian, and Lee Filters use a rather (to my mind) ridiculous desingation system, whereby they use designations such as 0.3, 0.6 etc.
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