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13-115 50 mm Dia. Hoya ND-50 Absorptive Neutral Density Filter; OD 0.3 425-675nm

13-115 50 mm Dia. Hoya ND-50 Absorptive Neutral Density Filter; OD 0.3 425-675nm

Type
Filter
Subtype
Neutral Density Filter
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
50 mm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.458448271212196
λ
588 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

13-115 50 mm Dia. Hoya ND-50 Absorptive Neutral Density Filter; OD 0.3 425-675nm

The 13-115 is a 50 mm diameter Neutral Density Filter, manufactured by Hoya and sourced from Edmund Optics. This filter is designed to reduce the intensity of light entering the optical system without altering its color composition. It is particularly useful in photography, videography, and other applications where controlling light intensity is crucial.

The filter features an Optical Density (OD) of 0.3, which corresponds to a 25% transmission of light. This makes it suitable for moderate light reduction scenarios. The wavelength range for this filter is 425-675nm, covering a significant portion of the visible light spectrum.

The filter is made from UVFS Mal-1965 material, a common choice for neutral density filters due to its consistent light absorption properties. The filter has a thin lens shape, with a thickness of 2.5mm, making it compatible with a wide range of optical systems.

The front and back surfaces of the filter are coated with EDM 13-081, a coating that enhances the filter's performance and durability. This coating helps to reduce surface reflections, increasing the amount of light transmitted through the filter, and also provides protection against environmental hazards.

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