Metallic Neautral Density Filters

Specifications:

Material: BK7 grade A, fine annealed or UV grade fused silica
Dimensions: 25.4±0.20 mm
Thickness: 2 ±0.10 mm
Wedge < 3 arc min
Density Tolerance: +/-5%
Useful Range: 400nm-1200nm
Surface Flatness: 1 l per inch
Surface Quality: 60-40 scratch-dig
Clear Aperture: 90% dimension
Damage Threshold: 30 W/cm2 CW, typical

Other sizes can be furnished upon request.

P/N Density(550nm) Transmittance % NDF-0.045 0.045 90

P/N Density(550nm) Transmittance % NDF-0.1 0.1 79

P/N Density(550nm) Transmittance % NDF-0.3 0.3 50

P/N Density(550nm) Transmittance % NDF-0.5 0.5 32

P/N Density(550nm) Transmittance % NDF-1.0 1.10

P/N Density(550nm) Transmittance % NDF-1.5 1.5 3.2

P/N Density(550nm) Transmittance % NDF-2.0 2.0 1.0

P/N Density(550nm) Transmittance % NDF-3.0 3.0 0.1