AND-20S-13 20 x 20 mm Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm

The AND-20S-13 is a 20 x 20 mm Neutral Density Filter, specifically designed for use in the visible light spectrum, ranging from 400 to 700nm. This filter is produced by OptoSigma, a leading vendor in the optical industry, known for their high-quality, precision-engineered products.

The filter is of the Absorptive Neutral Density type, which means it reduces the intensity of light without altering its color composition. This is achieved through the use of a special coating, denoted as 'opt and-13' on both the front and back surfaces of the filter. This coating ensures consistent attenuation across the entire visible light spectrum.

The filter is rectangular in shape, with dimensions of 20 x 20 mm, and has a thickness of 2mm. It is designed to fit a Thin Lens geometry. The material used for this filter is UVFS Mal- 1965, a type of optical glass known for its excellent optical properties and durability.

According to the vendor's information, the AND-20S-13 is currently in stock and available for immediate purchase. For more detailed information, including pricing and purchasing options, please refer to the vendor's website using the provided weblink.