Ice 82mm ND100000 Solid Neutral Density 5.0 Filter ICE-100K-82
Filter factor
Schneider 4 x 5.65" RHOdium Full Spectrum Neutral Density (FSND) 1.2 Filter (68-131256)
Complete Guide to Neutral Density filters – Part 2: Types & Strengths explained | Discover Digital Photography
Benro Master Neutral Density Filter ND1000 77mm 10 stop | Filters | Benro at Unique Photo
The Filters Factor: Adding WOW to your Images
A new method for the measurement of photographic filter factors . INSTRUMENT SCALE DISPLACEMEIVT OF LIGHT SOURCE Fig. 2.—Typical curves of density differences, showing the method of plotting Point of balance
GUI: Filter Design and Analysis Tool (Signal Processing Toolbox)
Tiffen W77ND3 77mm Neutral Density 0.3 Filter, Water White Glass W77ND3