ND01B Dia. 25 mm Unmounted Reflective ND Filter; Optical Density 0.1

The ND01B is a circular Neutral Density Filter with a diameter of 25 mm and a thickness of 1 mm, sourced from the renowned optical component manufacturer, Thorlabs. This unmounted filter is made of N-BK7 Schott glass, a high-grade material known for its excellent optical properties.

The filter features a front and back coating of THo ND01, a specialized reflective coating that provides a neutral density of 0.1. This coating reduces the intensity of light entering the optical system without altering its color composition, making it an ideal choice for various applications such as photography, beam attenuation, and laser applications.

The ND01B filter boasts a thin lens shape, designed to minimize optical aberrations and ensure optimal performance. The filter's geometry and coating make it suitable for use with a wavelength of 633 nm.

For users seeking comprehensive optical solutions, the ND01B filter is available for purchase through the Thorlabs website, where it is currently in stock. The filter's catalog number, ND01B, can be used for easy reference and identification.