Real HD LensExcellent optical design to 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: 1.8MMAngle of View: 180 degreeImage Format: 1/2.5Aperture: F2.0Mount: M12 *0.5Size about: 20 * 19mmW: 20gPackage Contents:1 X 5MP-1.8MM LensOnly 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.