FND-30C02-50 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 30 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
FND-30C02-50 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
OptoSigma's FND-30C02-50 is a high-quality Neutral Density Filter, designed for use in the visible light spectrum, specifically between 400 and 700nm. This unmounted filter, with a 30mm diameter and a thickness of 2mm, is made from N-BK7 Schott, a renowned optical glass known for its excellent transmittance and low auto-fluorescence.
The filter features a reflective coating, Opt FND-50, on both the front and back surfaces, which provides a neutral density of 50%. This means it reduces the intensity of light entering the optical system without altering the color composition. The thin lens shape of the filter ensures minimal distortion and maintains the integrity of the optical path.
This filter is currently in stock and available for immediate purchase through the OptoSigma website. The provided weblink leads directly to the product page for easy access and additional information.