25MM F/1.8 LENS: Fixed focal length 25mm, Wide angle lens. Aperture ranges from f/1.8 to f/16 to deliver smooth bokeh. Soft backgrounds makes photographs visually appealing, making us focus on a particular area of the image. Fit for close-up/portrait photo photography ADVANCED OPTICS: Lens construction is 7 elements in 5 groups, multi-layer coatings; A high definition anti-reflective coating suppresses lens flare and ghosting for increased contrast and color fidelity. Minimum focusing distance of 0.16m DESIGN AND MULTI COATING: With aluminum body and copper core, the lens is durable, compact and only 4.87 ounce/ 138grams in net weight; Features smooth focusing with superb feeling. Multi-coated technique for exceptional images quality. Perfect for landscape shooting and portraits with superb background blur This CCTV camera lens can provide super clear vision for your camera. This lens use 25mm lens and advanced optical elements to ensure all-around definition and efficient light conductivity. Its aperture can be manually adjusted according to the level of light available.