SM3 Retaining Ring for Ø3” Lens Tubes and Mounts

The SM3 Retaining Ring, with catalog number SM3RR, is a lens tube mount designed for compatibility with Ø3” lens tubes and mounts. Manufactured by Thorlabs, a trusted name in the optical industry, this retaining ring is crafted from high-quality aluminum and features a black anodized finish for durability and aesthetic appeal.

The SM3RR boasts a circular optical shape, with a thickness of 2.5mm, providing a sturdy and reliable mounting solution. It is equipped with an SM3 thread, ensuring a secure connection with compatible components. The clear aperture of this retaining ring measures 71.4mm, providing ample space for light transmission.

This retaining ring is part of Thorlabs' extensive range of Mount Accessories, specifically designed for use with lens tubes. It is an essential component for users seeking to build or upgrade their optical systems, offering a reliable and adaptable solution.

For more detailed information, including technical specifications and purchasing options, please refer to the product's webpage at https://www.thorlabs.com/thorproduct.cfm?partnumber=SM3RR.