FND-25C02-10 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm

The FND-25C02-10 is a 25 mm diameter, unmounted Neutral Density Filter, boasting a thickness of 2mm and manufactured from N-BK7 Schott material. This filter is designed for use within the visible light spectrum, specifically between 400-700nm.

The filter's Neutral Density properties are achieved through the application of OptoSigma's proprietary FND-10 coating on both the front and back surfaces. This coating is designed to maintain a high level of neutrality across the visible spectrum, ensuring minimal color shift in the transmitted light.

The filter's geometry, featuring a thin lens shape, is optimized for use in a variety of optical systems. The 25mm diameter provides a versatile size that can be easily integrated into many different setups. The 2mm thickness, while maintaining a low profile, offers sufficient durability for most applications.

This filter is currently in stock and available for purchase through the OptoSigma website. The provided weblink offers direct access to the product page for convenient ordering and further information.