Spec Resolution: 10 MegaPixel Image format: 1 Focal length: 16mm Aperture: F1.4-16 Mount: C Field Angle: 1: 44.6 33.6 2/3: 30.0 23.2 1/1.8: 24.7 18.6 1/2: 21.8 16.4 Back Focal Length: 17.53mm Optical Length: 67.53mm Distortrion: 1(-0.7%) 1/2(-0.5%) 1/3(-0.15%) M.O.D.: 0.20m Dimension: 39.0050.00mm Weight: 133.7g Structure: +9G