CtoCS Mount Adapter — aluminum, precisionmachined, compact Key benefits Solves mount incompatibility between Cmount lenses and CSmount cameras by converting the interface quickly and reliably. Adds a small flange extension to increase effective focal length when needed, useful for finetuning field of view without changing optics. Durable, lightweight construction and precise threads ensure stable mounting and repeatable alignment. What it is and how it works Function: C port to CS port adapter. Converts a Cmount lens to fit a CSmount camera or acts as a short extension to alter focal length. Typical uses: Camera with CS port and lens with C port: adapter converts the interfaces to match and increases the effective focal length. Both camera and lens are Cmount: using the adapter provides a small extension that increases focal length. Material and build quality Material: aluminum — sturdy, durable, and corrosionresistant. Threads: precisioncut, clear and smooth engagement with no tooth loss. Finish resists chipping or paint loss and shows careful workmanship. Size and fit Outer diameter: 30 mm (1.18 inch) Inner diameter: 25 mm (0.98 inch) Thickness: 9 mm (0.35 inch) Portable, lowprofile design that preserves clearance and keeps optical alignment stable. Compatibility and performance Compatible with Cmount and CSmount CCTV, surveillance, and industrial camera systems where a mount conversion or short focal extension is needed. Maintains mechanical stability and optical alignment when properly fitted; increases focal length as a result of the added flange spacing. Practical applications (examples) Surveillance install: Mount a Cmount lens onto a CSmount security camera to reuse existing lenses and adjust the field of view without replacing the camera. Industrial machine vision: Convert lenscamera combinations on inspection rigs to achieve the needed working distance or magnification. Lab or test setups: Quickly adapt optics during prototyping or optical testing where small changes in focal length help frame or focus a scene. Notes for users Ensure threads are clean and engaged fully before tightening to avoid crossthreading. The adapter changes the flange focal distance and may affect focus range; verify focus after installation. Designed as a mechanical adapter — does not modify electronic or optical lens characteristics beyond the focallength effect of the added spacing.