Hikvision TV2713D-IR Analog and IP Lenses Type: Lens Specifications: Focal Length: 2.7~13mm Aperture Range: F1.3-C Lens Mount: CS Format: 1/3? Horizontal Angle of View: 1/3 98 degree ~22 degree, 1/4 73.1 degree ~17.1 degree Min.Working Distance: 0.3m Iris Control: DC Application: Within 30 meters |