Photo Lens -Varifocal Camera Lens Highlights Generic Brand Varifocal Camera Lens Description: This is a 1/2" varifocal lens format with zoom Iris 2MP FL 4 -12mm F1.6. Suitable for 1/2" sensor. As a spare part for CCTV security camera system. With fine workmanship and professional grade material, it has good hand feeling, excellent working performance, excellent for long term use. With high definition image, good color reduction and low distortion, it provides wide and clear view of your vidicon. Specification: Focal Length (mm): 4-12mm Back Focal Length: 17.5mm Distortion: 17-6% Aperture (D/f'): 1/1.6 Mount: C Format (inch): 1/2'' Horizontal Field: 70-29 Dimension (mm): D.32 x L.49 Range of WD (m): 0.2 Focus: w/lock Iris: Manual Temperature: -10C to +50C MP: 2MP Le package includes: 1 piece 2MP FL 4-12mm F1.6 C Lens