Mount Converter Adaptor for CCTV Security Camera 5mm Camera Lens Adapter Ring Extension Tube Aliminum Adapter

Lens extension tube, no sliding, no fading. Suitable for video and industrial view. High grade aluminum material, fine workmanship, good quality ring. Mount Converter Adaptor for CCTV Security Camera 5mm Camera Lens Adapter Ring Extension Tube Aliminum Adapter Features: Lens extension tube, no sliding, no fading. Suitable for video and industrial view. High grade aluminum material, fine workmanship, good quality ring. The adapter ring is used to realize the conversion between interfaces. 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: Material: Aluminum Outer Diameter: 31mm, Inner Diameter: 25.4mm Thickness: 5mm Package Includes: 1x Adapter Ring note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors