Features [High Resolution] The C mount lens features 12MP high resolution and 25mm Focusing length, ensuring clear image with low distortion and high picture quality. [Manual Focusing and Aperture] This camera lens features manual focusing and adjustable aperture, can also be fixed and locked, ensuring there is no lens shadow or dark corner. [Premium Construction] Crafted from premium aluminum alloy, this C mount lens is resistant to high temperature and rusty, ensuring long lasting use. [Easy Installation] The lens is simple to install, requires no complex procedures, saving you valuable time and energy, providing professional grade photography capabilities. [High Performance] This lens is very suitable for wide angle photography with high resolution and low distortion, can work stably at -20℃ to +60℃. Specification: Item Type: C Mount Lens Material: Aluminum Alloy Resolution: 12MP Image Format: 2/3 Inch Focusing Length: 25mm Aperture: F2.8 Mount: C Distortion: -0.03% Minimum Object Distance: Approx. 0.15m / 5.91in Flange Back Focusing Length: Approx. 17.526mm / 0.69in Day Night Confocal: No Aperture: Manual Aperture Focusing: Manual Focusing Working Temperature: -20℃ to +60℃ Package List: 1 x C Mount Lens 2 x Screws Package List 1 x C Mount Lens 2 x Screws