Sony EVI-H100S/W PTZ Camera with 20x Optical Zoom Video Camera (White) Focus System Auto, One-push AF, Manual, Infinity Focal Length 4.7 - 94 mm Zoom Ratio 20x (Optical) 12x (Digital) Aperture f /1.6 - f 3/.5 Minimum Object Distance (M.O.D.) 10 mm (wide) 800 mm (tele) Default 290 mm Horizontal Viewing Angle 55.4 Degree (wide) 2.9 Degree (tele) Interface RS-232C/RS-422 Protocol VISCA Preset Positions 6