CF50ZA-1S Technical Specifications: Product Line / Series CF-ZA-1S Lens Type Fixed Focal Length IP Rating Not Specified Focal Length 50 mm ƒ/N ƒ/2.4 - ƒ/16 Image Size Not Specified Image Circle Diameter Not Specified Imager Format 1.1″ Light Spectrum Visible Resolution (MP) 12-23 Resolution (Pixel Size) 2.74 μm Weight 155 Grams Mount C-Mount Filter Thread M37.5-0.5 Minimum Object Distance 200 mm Front Diameter 39 mm Focus Control Manual Iris Control Manual Flange Back in Air 17.526 mm Exit Pupil Position -99.72 mm Entrance Pupil Position -26.73 mm TV Distortion (%) -0.17 Operating Temperature Range -10 to +50°C Dimensions 39 mm × 39 mm × 68 mm Angle of View @ 2/3″ 16.6° x 12.5° Back Focal Length 21.18 mm Chief Ray Angle 4.84° Front Principle Point -2.49 mm Rear Principle Point -30.92 mm Distance Between Principle Points -28.43 mm