This 8 MP CS mount varifocal lens from Tamron has a focal length of 12 to 50 mm and a fast aperture of F1.4. The P-Iris lens is IR corrected and designed specifically for cameras with P-Iris technology. The Lens supports cameras up to 8 megapixels and is compatible with certain AXIS P13 and AXIS Q16 series network cameras. Compatible with eg AXIS Q1645/-LE, AXIS Q1647/-LE, AXIS P1367/-E and P1368-E.