Aluminum construction with a precise 30 mm outer diameter design delivers a lightweight, durable extension tube that preserves optical alignment while converting between Cmount configurations Maintains optical alignment during lens mount conversion, reducing setup time and the risk of misalignment in critical imaging tasks Ideal for upgrading existing CCTV systems, factory automation equipment, or industrial inspection cameras that require Cmount compatibility in tight installations Suitable for security technicians, industrial camera operators, and photography professionals who need reliable mount conversion for specialized surveillance or machine setups Spacer rings enable flawless lens integration across security and industrial applications, with standardized Cthread specifications 23 practical use scenarios Upgrading a CCTV camera in a compact enclosure: convert to Cmount compatibility without sacrificing alignment, enabling reuse of existing lenses in a tight space Integrating Cmount lenses into a smallform factory automation or machine vision station: maintain precise alignment with a compact outer diameter Field deployment for security surveillance or industrial monitoring: quickly swap or adapt lenses for diverse surveillance setups or equipment configurations