M39.5 x 0.5 Retaining Ring - SM39RR

The M39.5 x 0.5 Retaining Ring, catalog number SM39RR, is a precision-engineered component from Thorlabs, a leading manufacturer in the field of optical hardware. This retaining ring is designed for use with lens tubes, specifically the SM2AD39, and is an essential accessory for any optical system that utilizes these components.

Crafted from high-quality aluminum, the SM39RR boasts a black anodized finish, providing not only a sleek aesthetic but also enhancing its durability and resistance to wear and tear. The ring has a thickness of 2.5 millimeters, ensuring a secure fit while maintaining a low profile.

The SM39RR features a clear aperture of 36.5 millimeters, providing ample space for light transmission while minimizing obstruction. The ring is compatible with lens tubes that have an M39.5 x 0.5 thread, ensuring a secure and reliable connection.

This retaining ring is a crucial component for any optical system that utilizes the SM2AD39 lens tube. It provides a secure and stable mount, ensuring the optimal performance of your optical system. The SM39RR is available for purchase through the Thorlabs website, where you can find more detailed specifications and additional product information.