FNP4050 - Gelatine Neutral Density Filters
Description
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 narrower wavelength range than glass ND filters and metallic types. Gelatine neutral density filters work by absorption so care must be taken to avoid overheating which can lead to damage to the filter. Gelatine ND filters can also be cut easily to bespoke custom sizes in your own laboratory which can be extremely useful.
Wratten neutral density gelatin filters are now being replaced by Wratten 2 type filters which are manufactured using a ridged polymer. Wratten 2 filters are more robust and unaffected by water and moisture as gelatine type.
FNP4050 - Gelatine Neutral Density Filters
Specifications |
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|---|---|
| Attenuator Type: | Absorptive |
| Shape: | Square |
| Size: | 50 mm |
| Optical Density: | 4.0 |
Features
Large 300x100mm sheets available that can be cut to smaller shapes and sizes.
Stock sheets can be cut with a razor or CNC machined to unusual shapes.
Coating options from antireflective to anti-scratch.
Mounting options.
Applications
Neutral density filters are used in applications such as spectroscopy, machine vision, ellipsometry and photography.
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
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How to order?
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Ships from:
United Kingdom
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Sold by:
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On FindLight:
since 2016
Frequently Asked Questions
Gelatine neutral density filters are the cheapest but tend to have more fluctuation with wavelength and a narrower wavelength range than glass ND filters and metallic types.
Neutral density filters can be custom made with dimensions ranging from 5mm to 300mm+ and optical density ranging from 0.1 to 4.0. They can also be mounted or unmounted.
Gelatine neutral density filters work by absorption so care must be taken to avoid overheating which can lead to damage to the filter.
Neutral density filters are used in applications such as spectroscopy, machine vision, ellipsometry and photography.
Neutral density filters attenuate light by a constant amount that is independent of the wavelength.