Circular Variable Neutral Density Filters

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Grouped product items
SKU	Specifications	Stock Qty	Price
9013971	Clear aperture: >90 Dimensions tolerance, mm: +0/-0.1 Material: Neutral density glass Optical density: 1 Outside Diameter, mm: 12.7 Protective chamfers: <0.25 mm x 45° Surface quality, S-D: 60-40	12	€25.00
9415871	Attenuation range, Tmin - Tmax: 90%-1% Clear Aperture: >90 S1 Flatness, PV IR S2 Flatness, PV: <λ @ 632.8 nm Material: BK7 Mount: unmounted Optical density range: 0.04 - 2.0 Outside/Inside Diameter, mm: 100/8 (+0/-0.1) Protective chamfers: 0.1-0.25 mm x 45° Surface quality, S-D: 60 - 40 Wavelength, nm: 380-2000 Wedge / Parallelism error: <3 arcmin	2	€186.00
9421402	Clear aperture: >90 Inside diameter, mm: 8.3 Material: Neutral density glass Optical density range: 0.04-2.0 Outside Diameter, mm: 25 Protective chamfers: <0.25 mm x 45° Surface quality, S-D: 20-10 Thickness, mm: 2.0 Wavelength, nm: 400-700	14	€94.00

Details

Transmitted intensity varies as a function of the optical density range. The filter can be used for white light as well as for lasers. A large finite aperture can be attenuated by counter rotating two filters in series.

Circular Variable Neutral Density filter is economical solution to attenuate light

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