16x magnification telephoto lens for megapixel cameras Supporting both P-Iris technology and DC-iris, Theia offers compact high resolution telephoto lenses 9-40 mm. The lenses are IR corrected in order to provide a perfect focused image both day and night. The P-Iris lens is specially made for cameras with support for P-Iris technology. These multi megapixel resolution lenses support cameras up to 5 megapixels. The long focal length magnifies objects from far away for unobtrusive security. These lenses allow the user to digitally zoom in up to 16x. They are high quality lenses designed to allow the installer to take full advantage of the high resolution of HDTV and multi megapixel cameras. The focal length is 9 - 40 mm and the lenses fast aperture (F-number) is 1.5.