Neutral Density Filters (Attenuator Type: Absorptive)

FNP1050 - Gelatine Neutral Density Filters

FNP1050 - Gelatine Neutral Density Filters

Neutral density filters attenuate light by a constant amount that is, to first order, independent of the wavelength. Gelatin ND filters are the cheapest but tend to have more fluctuation with wavelength and a ...

Sold by: Knight Optical (UK) Ltd Ships from: United Kingdom
Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 1
Neutral Density Filter-Absorptive

Neutral Density Filter-Absorptive

These are Neutral Density Filters (Absorptive type). They are made of absorptive glass and feature 80/50 scratch/dig quality.  Please contact us for details and ordering info.

Sold by: Union Optic Ships from: China
Specifications
Design Wavelength: 400 - 700 nm
Surface Quality: 80/50 scratch and dig
Clear Aperture: > 90 %
Flatness: < 2λ @632.8nm
Parallelism: < 5 arc minutes
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