The AND-20C-10 is a high-quality Neutral Density Filter, offered by the renowned optical components manufacturer, OptoSigma. This filter is designed for use in the visible light spectrum, specifically absorbing light within the 400-700nm range.
The filter is circular in shape, with a diameter of 20mm and a thickness of 2mm, making it compatible with a wide range of optical systems. It features a thin lens shape, which is beneficial for applications where minimizing optical path length is crucial.
The filter's coating is another notable feature. Both the front and back surfaces are coated with OptoSigma's AND-10 coating, which is designed to provide optimal performance in terms of light absorption and transmission. This coating ensures the filter maintains its neutral density across the entire visible light spectrum, making it suitable for a wide range of applications.
The catalog number for this filter is AND-20C-10, and it can be easily purchased through the OptoSigma website, where it is currently in stock. The link to the product page is provided in the item data for your convenience.