NiSi 100x150mm Nano Hard-Edge Graduated ND Glass 0.9 (3 Stop) Filter

Filter Type: Infrared Control /Graduated Neutral Density (IR GND) Density:0.9 Filter Factor:8 (3 stop) Glass Thickness:2mm (0.08') Construction: Single piece of H-K9L optical glass with dual-sided nano coating technology Dimensions:100 x 150mm (3.94 x 5.91')