The KJ17ex7.7B IRSE is one of Canon's HDgc Series production lenses, designed for portability and affordability, offering a generous range of focal lengths as well as a wide range of view. This lens provides excellent video images in very low light environments due to its maximum relative aperture of F1.9 which combines well with the typically F-10/11 sensitivity specifications of most HD ENG cameras. Shuttle Shot, an enhanced servo system, lets the operator zoom back and forth between two positions for either checking focus or precise zooming, while the design incorporates a dual lens approach to broaden the shooting options, achievement of an adequate sensitivity, maximization of image contrast, and preservation of the highest MTF over the long focal ranges.
SPECIFICATIONS
Zoom Ratio: 17x
Image Size: 2/3"
Built-in Extender: 2.0x
Range of Focal Length (with Extender):
7.7~131mm
15.4~262mm (2.0x)
Maximum Relative Aperture (with Extender):
1:1.8 at 7.7~102.5mm
1:2.3 at 131mm
1:3.6 at 15.4~205mm (2.0x)
1:4.6 at 262mm (2.0x)
Angular Field of View (with Extender) in 4:3 Aspect Ratio (8.8 x 6.6mm):
63.9°x38.6° at 7.7mm
4.2°x2.36° at 131mm
34.6°x19.9° at 15.4mm (2.0x)
2.1°x1.18° at 262mm (2.0x)
Angular Field of View (with Extender) in 16:9 Aspect Ratio (9.6 x 5.4mm):
59.5°x46.4° at 7.7mm
3.85°x2.89° at 131mm
31.9°x24.2° at 15.4mm (2.0x)
1.92°x1.44° at 262mm (2.0x)
M.O.D. from Lens Front: 0.6m (10mm with Macro)
Object Dimensions at M.O.D. (with Extender) in 4:3 Aspect Ratio (8.8 x 6.6mm):
68.5×38.5cm at 7.7mm
4.2×2.4cm at 131mm
34.3×19.3cm at 15.4mm (2.0x)
2.1×1.2cm at 262mm (2.0x)
Object Dimensions at M.O.D. (with Extender) in 16:9 Aspect Ratio (9.6 x 5.4mm):
63.1×47.3cm at 7.7mm
3.8×2.9cm at 131mm
31.6×23.7cm at 15.4mm (2.0x)
1.9×1.5cm at 262mm (2.0x)
