2 Pcs Lens: 1 Pcs M12 2.8-12mm lens & 1 Pcs 5MP-1.8MM Lens This useful, 2.8-12mm lens, with a wide 108 Degree -31.2 Degree viewing and IR capability has a standard M12x0.5 Thread with an aperture of F1:1.4 and is suitable for 1/3 inch CCD chipsets and 1/2.5 inch IP camera. The manual focus lens can be used to tailor the camera to the exact requirements of the chosen application Real HD Lens Excellent optical design to ensure that the residual aberration can be well reduced, the overall transmission rate increased significantly, the use of broadband multi-layer coating, to maximize the tail and flash the backlight suppression occurs Phenomenon, but also can effectively reduce the reflective loss of the lens, eliminating the better ghosting, glare, spot; coating is very uniform, effectively improve the color reproduction, in order to improve the clarity of the image. VR all series of network HD can be installed -Length(mm): 2.8~12mm Format(Inch): 1/2.5 inch Aperture(D/f'): 1/1.4 D(m): 0.2 Zoom: Manual Focus: Manual Iris: Fixed Back -Length(mm): 6.39 Operating Temperature: -20~+80degree centigrade Length: 1.8MM Angle of View: 180 degree Image Format: 1/2.5 Aperture: F2.0 Mount: M12 *0.5 & M12 Colour: Black material: metal Size about: 20 * 19mm & 28.6x44.8mm Package Contents: 1 * M12 2.8-12mm lens 1 * 5MP-1.8MM Lens Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 3.0MP CCTV Lens 5MP CCTV Lens 180 degree cctv lens