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
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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