14NDF-15-3 50.8 x 50.8 mm Unmounted Absorptive Neutral Density Filter; OD 0.8 400-700nm

This is a 14NDF-15-3 Unmounted Absorptive Neutral Density Filter, offered by Standa. The filter is designed to reduce the intensity of light without altering its color composition, making it an essential tool in various optical applications.

The filter has a rectangular base shape with a width and height of 50.8 mm each, providing a substantial area for light absorption. It has a thickness of 3 mm, ensuring durability and stability. The filter is made of UVFS Mal-1965 material, a common choice for neutral density filters due to its excellent optical properties.

The filter's coating is Sta 14ndf-0.8 on both the front and back surfaces. This coating provides a neutral density of 0.8, which corresponds to a 67% transmission of light. The coating is designed to operate within the wavelength range of 400-700nm, covering the visible light spectrum.

The filter's shape is thin lens, which suggests that it is designed to minimize optical aberrations and distortions. This makes it suitable for precision optical systems where maintaining the quality of the light path is crucial.