KJ17ex7.7B Built-in extender 1.0x 2.0x Zoom Ratio 17x Range of Focal Length 7.7-131mm 15.4-262mm Maximum Relative Aperture 1:1.8 at 7.7-102.5mm 1:2.3 at 131mm 1:3.6 at 15.4-205.0mm 1:4.6 at 262mm Angular Field of View NORMAL 4:3 59.5°x46.4° 3.85°x2.89° 31.9°x24.2° 1.92°x 1.44° NORMAL 16:9 63.9°x38.6° 4.20°x2.36° 34.6°x19.9° 2.10°x1.18° Minimum Object Distance (M.O.D) 0.6m (10mm with Macro) Object Demensions at M.O.D NORMAL 4:3 63.1x47.3cm at 7.7mm 3.8x2.9cm at 131mm 31.6x23.7cm at 15.4mm 1.9x1.5cm at 262mm NORMAL 16:9 68.5x38.5cm at 7.7mm 4.2x2.4cm at 131mm 34.3x19.3cm at 15.4mm 2.1x1.2cm at 262mm Approx.Size WxHxL=159.3x106.6x197.8mm Approx. Mass (IRSE/IASE) 1.48Kg (3.26lbs) / 1.56Kg (3.44lbs) Operational Accessories Full servo : SS-41-IASD / SS-41-D Semi servo: MS-210D