MFND-25-30 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
MFND-25-30 25 mm Dia. Mounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
OptoSigma's MFND-25-30 is a Neutral Density Filter, designed with a circular geometry and a diameter of 25 mm. This filter is mounted and has a thickness of 2 mm, making it a thin lens type. The base shape is circular, and it is made from N-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence.
The filter is designed for use in the visible spectrum, specifically between 400-700 nm, with a peak wavelength of 550 nm. It features a reflective coating on both the front and back, specifically the OPT FND-30 coating. This coating is designed to provide high neutral density while maintaining excellent color and image quality.
The MFND-25-30 is currently in stock and available for purchase. For more information, including pricing and detailed specifications, please refer to the provided weblink.
