ThorLabs CM1L20 Extension Tube with C-Mount and SM1 Threading

The ThorLabs CM1L20 is an essential component for extending optical path lengths in C-mount and SM1-threaded systems. This extension tube is meticulously crafted from black-anodized aluminum, ensuring both durability and minimal internal reflections. Its dual compatibility with C-mount and SM1 threading allows for seamless integration into a wide array of optical setups, making it ideal for microscopy, imaging, and other applications where precise optical adjustments are crucial. The CM1L20 facilitates fine-tuning of focus and spacing, enabling users to achieve optimal image quality and system performance.