Fujinon ZA17x7.6BRD-S10 2/3” Select Series Zoom Lens ZA17x7.6BERM / BERD Standard focal length coverage 7.6-137mm (275mm with extender) Outstanding HD High Optical Performance Equipped New Ergonomic Digital Grip 16bit encoders device for virtual system Model Name ZA17x7.6BERM / BERD Focal length [1x] 7.6-130mm [2x] 15.2-260mm Zoom ratio 17x Extender 2x Maximum relative aperture (F-no.) 1: 1.8 (7.6-102mm) / 1: 2.3 (130mm) Minimum object distance (M.O.D.) from front lens 0.6m Object dimensions at M.O.D. 16: 9 Aspect ratio [1x] 7.6mm 696 x 392mm 130mm 43 x 24mm [2x] 15.2mm 362 x 204mm 260mm 22 x 12mm Angular field of view 16: 9 Aspect ratio [1x] 7.6mm 64.5? x 39? 130mm 4.2? x 2.4? [2x] 15.2mm 35? x 20.1? 260mm 2.1? x 1.2? Filter thread M82 x 0.75 Approx. Size Ï??85 x 203mm (Ï?? x Length) Approx Mass 1.67kg (RM) / 1.74kg (RD) (without lens hood)