C-CS Mount Camera Lens Adapter Ring 5mm Extension Tube C-CS Mount Converter Adaptor Spacer Ring for CCTV Security Camera

Lens extension tube, no sliding-no paint-fading. Suitable for video surveillance-and industrial vision. High-grade aluminum material, fine workmanship-good quality ring. C-CS Mount Camera Lens Adapter Ring 5mm Extension Tube C-CS Mount Converter Adaptor Spacer Ring for CCTV Security Camera. Features: Lens extension tube, no sliding-no paint-fading. Suitable for video surveillance-and industrial vision. High-grade aluminum material, fine workmanship-good quality ring. When the lens focus-is not clear and need to find the rear focus-the adapter ring is used to realize the conversion between interfaces, so as to present the best image-When it is used: 1. The camera is CS-port, the lens is C-ports, which makes the interfaces into a consistent, but also increases the focal-length. 2. The camera and lens are both C-ports, thus increasing the focal-length. Specifications: Standard Interface: C-Interface. Material: Aluminum(Matte-Treatment). Outer Diameter: 31mm, Inner Diameter: 25.4mm. Thickn