The MAN-30-20 is a Neutral Density Filter, specifically an Absorptive Neutral Density Filter, designed for use in the visible light spectrum, between 400-700nm. This filter is manufactured by OptoSigma, a renowned vendor in the optical industry.
The filter is circular in shape, with a diameter of 30mm and a thickness of 2mm, making it a thin lens. The base material of the filter is UVFS Mal-1965, a high-quality optical material known for its durability and clarity.
The filter's coating is another notable feature. Both the front and back of the filter are coated with Opt And-20, a coating that enhances the filter's performance and longevity. This coating is designed to provide optimal optical and environmental protection, ensuring the filter maintains its properties over time.
The filter is currently in stock and available for purchase. For more detailed information, including pricing and availability, please refer to the vendor's website using the provided weblink.