Canon CJ20ex7.8BIASE

Mount
B4

Image Coverage
9.6×5.4mm

Built-in extender
2.0×

Focal Length
7.8-156mm

(with Extender)
15.6-312mm

Zoom ratio
20×

Maximum Relative Aperture
1:1.8 at 7.8-108mm
1:2.6 at 156mm

(with Extender)
1:3.6 at 15.6-216mm
1:5.2 at 312mm

Angular Field of View
63.2°× 38.2°
3.5°× 2.0

(with Extender)
34.2°× 19.6°
1.8°× 1.0°

M.O.D ( from Image Plane )
0.80m (10mm with Macro)

Object Dimensions at M.O.D.
91.7×51.6cm[at 7.8mm]
4.8×2.7cm [at 156mm]

(with Extender)
45.9×25.8cm [at 15.6mm]
2.4×1.4cm [at 312mm]

Approx. Size (W×H×L)
169.9 × 114.4 × 230.0mm

Approx. Mass
2.18kg