13-185 50 mm Dia. Hoya ND-25 Absorptive Neutral Density Filter; OD 0.5 600-1050nm
- 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
13-185 50 mm Dia. Hoya ND-25 Absorptive Neutral Density Filter; OD 0.5 600-1050nm
The 13-185 is a Neutral Density Filter by Hoya, available from Edmund Optics. This absorptive filter, with a catalog number of 13-185, is designed for use in the near-infrared spectrum, specifically at a wavelength of 588nm.
The filter boasts a circular shape, with a diameter of 50mm and a thickness of 2mm, making it compatible with a wide range of optical systems. The 13-185 filter is coated on both the front and back surfaces with EDM 13-151, a coating that enhances its performance and durability.
This filter is part of the EDM UVFS MAL-1965 material family, which is known for its high-quality optical properties. The filter is designed to provide a neutral density of 0.5, which is equivalent to an optical density (OD) of 0.5. This means it reduces the intensity of light passing through it by a factor of 10^0.5, or approximately 3.16.
The 13-185 filter is designed for use in the 600-1050nm range, making it suitable for a wide range of applications in the near-infrared spectrum. It is currently in stock and available for purchase through the Edmund Optics website.
