This is the 14NDF-60-3 Unmounted Absorptive Neutral Density Filter from Standa, a renowned vendor in the optical industry. The filter is designed to reduce the intensity of incident light without altering its color composition, making it an essential component in various optical systems.
The filter has a rectangular base shape with dimensions of 50.8 x 50.8 mm, providing a substantial area for beam manipulation. It has a thickness of 3 mm, ensuring durability and stability during operation. The filter is made of UVFS Mal-1965 material, a high-quality substrate known for its excellent optical properties.
The 14NDF-60-3 filter features a front and back coating of STA 14NDF-0.2, which provides a neutral density of 0.2 (Optical Density) across the wavelength range of 400-700nm. This means it attenuates the light by a factor of 1.6, making it ideal for applications requiring moderate light reduction.
The filter's shape is designed as a Thin Lens, optimized for minimal optical aberrations and distortions. This feature makes it suitable for precision optical applications where high image quality is paramount.