Engineered with aluminum construction and precise 30mm outer diameter design, this extension tube maintains opticals alignment while converting between C lens mounts effortlessly for upgrading existing CCTV systems, factory automation equipment, or industrial inspection cameras needing C lens compatibility in tight installation Achieve flawlesses lens integration across security and industrial applications with spacer Rings, featuring toolfrees installation and standardized C thread specifications for security technicians, industrial camera operators, and photography professional requiring mount conversion for specializeds Surveillances or machine setups Seamlessly connectings C mount lens to mount CCTV security cameras with 5mm 10mm aluminum adapter Rings, ensuring precise compatibility for industrial and Surveillances imaging systems