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Circular Variable Neutral Density Filters

Main Specifications:


Design Wavelength 400~700nm Standard, 380~2000nm (B270), 250~2500nm (Fused Silica)
Outside Diameter 25, 30, 40, 45, 50, 60, 100mm
Inside Diameter 7.5, 8, 8.3mm
Thickness 1.5+/-0.25mm, 2+/-0.25mm
Standard Linearlity +/-5%
Coated Area 0~270 deg. standard, 0~300deg. available
Optical Density 0.04~1.0, 0.04~1.5, 0.04~2.0, 0.04~3.0, 0.04~4.0
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