SM2NR1 In Stock

The SM2NR1 by ThorLabs is a high-quality non-rotating zoom adjustment housing designed specifically for Ø1" optics in a lens tube system. The SM2NR1 is equipped with SM2 threading (2.035"-40) and is designed to be seamlessly mounted between two fixed lens tubes, offering precise control over the position of optics along the optical axis. Featuring an internally SM1-threaded (1.035"-40) cell, the SM2NR1 allows for easy installation of optics using a compatible retaining ring.

The SM2NR1’s double helical mechanism enables smooth and precise back-and-forth movement of the optic, while effectively restricting any rotational motion. This ensures that the optic remains in the desired position. With 1.16" (29.5 mm) of non-rotating adjustment per revolution, and a travel of 17 mm per revolution, the SM2NR1 provides fine-grained control over the positioning of optics. This allows for precise alignment and optimization of an optical setup to achieve optimal performance. The SM2NR1 is designed to be easily mounted between two fixed SM2 lens tubes, providing a stable and secure connection. Its durable construction ensures long-lasting performance, even in demanding optical systems.