KJ20x8.5B KTS HDTV Remote Control Lens Main Features: Fast Zoom Speed 2.0sec Internal focusing reduces lateral chromatic aberrations and improves corner performance Square hood reduces flares and ghosting. Light Weight 1.42kg High Zoom Ratio 20x High Definition Optical Quality   Lens KJ20x8.5B KTS Application 2/3" Remote Control Zoom Ratio 20x Built-in Extender - Range of Focal Length (with Extender) 8.5~170mm Maximum Relative Aperture (with extender) 1:1.8 at 8.5~113.3mm 1:2.7 at 170mm Angular field of view (with Extender) 4:3 Aspect Ratio (8.8 x 6.6mm) 54.7° x 42.4° 6.5° x 4.8° 16:9 Aspect Ratio (9.6 x 5.4mm) 58.9° x 52.0° 4.8° x 2.7° Minimum Object Distance (M.O.D.) 0.9m (10mm with Macro) Object Dimensions at M.O.D. (with Extender) 4:3 Aspect Ratio (8.8 x 6.6mm) 85.2 x 63.9cm at 8.5mm 4.4 x 3.3cm at 170mm 16:9 Aspect Ratio (9.6 x 5.4mm) 92.5 x 52.0cm at 8.5mm 4.8 x 2.7cm at 170mm Size (W x H x L) 113.7 x 91.4 x 170.4mm Mass (Approx.) 1.42kg

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