Compact 2.5mm wide angle lens designed for 3MP CCTV and home security cameras with a CS mount. Built from aluminum alloy for a durable, lightweight fit, this lens expands the monitoring area so you can cover more with fewer cameras while maintaining clear image detail at up to 3MP resolution. Key benefits Wider coverage: 2.5mm focal length provides a wide angle view to monitor larger areas and reduce blind spots. Compatible performance: Supports up to 3MP resolution for clear video when paired with a compatible camera. Easy installation: Standard CS mount fits directly to cameras with CS interfaces for quick replacement or upgrade. Durable construction: Aluminum alloy body resists wear and keeps alignment stable over time. Low profile design: Compact size fits most CCTV housings and domestic security camera enclosures. Main features Focal length: 2.5mm for wide angle surveillance Resolution support: Up to 3MP Mount type: CS mount Material: Aluminum alloy Application: Designed for CCTV and home security camera systems Typical use scenarios Front entrance and porch monitoring: Capture the full approach path and surrounding yard in a single frame for improved situational awareness. Small retail or reception areas: Cover counters and checkout lanes with a single camera to reduce equipment needs while retaining detail. Indoor wide spaces and garages: Monitor living rooms, warehouses, or vehicle bays where a broad field of view is required. Notes on compatibility and setup Installs directly on cameras with CS mount. For C mount cameras, use a standard C to CS adapter if needed. Designed for use with cameras that support 3MP resolution; image quality depends on the camera sensor and settings. This lens is a practical option for anyone looking to expand field of view and coverage on CCTV and home security cameras without replacing the camera body.