ND30A Dia. 25 mm ND Reflective Filter; SM1-Threaded Mount; Optical Density 3.0

The ND30A is a Neutral Density Filter with a diameter of 25 mm, manufactured by Thorlabs. This filter is designed for use with a wavelength of 633 nm and features a thin lens shape with a thickness of 1 mm. The ND30A is made from N-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence.

This filter boasts a front and back coating of THo ND30, a specialized coating that provides a high level of neutral density, reducing the intensity of light entering the optical path without altering its color composition. The coating also enhances the filter's durability and resistance to environmental factors, ensuring long-lasting performance.

The ND30A is equipped with an SM1-threaded mount, providing a secure and stable connection to other optical components. This mount is compatible with a wide range of Thorlabs' products, offering flexibility in system design and integration.

The filter's catalog number is ND30A, and it is currently in stock. For more information, you can visit the product webpage at https://www.thorlabs.com/thorproduct.cfm?partnumber=ND30A.