Canon KJ17ex7.7B IRSE - 2/3" ENG Broadcast Lens


17x7.7 Broadcast Objective with duplicator. Focal length 7.7 to 131, 15.4 to 262 with extender. Maximum aperture F1.8. Semi-servo.


Montura de Cámara



Broadcast 17x7.7 objective of the HDgc range, designed for low cost acquisition. This objective is particularly suitable for news gathering and other low budget HD productions.

The short 7.7mm focal length of the KJ17ex7.7B translates into a horizontal viewing angle of 63.9 degrees in 16:9 HD picture format. Combined with a focal range that has been extended to now cover a range from 7.7mm to 131mm (and 262mm with the extender), this lens offers unsurpassed operating capabilities in a compact package that weighs less than 1.62kg. Focus breathing is significantly reduced. The maximum relative aperture is F1.9 which, combined with the F-10/11 sensitivity specifications of contemporary ENG HD cameras, ensures excellent video images in very low light environments.

Newly developed optical materials, combined with the latest innovations in the design of lens elements and multilayer coatings, produce an unbeatable imaging system for the most demanding production equipment.

The design innovation Canon uses, with a floating optical system, better controls chromatic aberrations.

The improved servo system, called Shuttle Shot, adds value to handheld acquisition systems. It includes servo control that allows the operator to precisely zoom between two pre-programmed zoom positions. The maximum zoom speed is 1.2 seconds from end to end.

The ergonomic mechanical design used in the production makes this HD lens the same size and weight as its predecessor SDTV. The compact drive unit is mounted on the lens, at a 12.5 degree angle, for comfort and balance The aluminum alloy body provides light weight and exceptional durability.

Data sheet

Optical zoom




Sensor Compatibility


2/3" CCD (4:3 / 16:9)


Focal Length


7.7 to 131mm
With Extender: 15.4 to 262mm


Built-In Extender




Zoom Ratio




Angle of View


Wide: 68.5° (H)
Tele: 4.2° (H)
With 2x Extender
Wide: 34.3° (H)
Tele: 2.1° (H)


Maximum Aperture


f/1.8 to 2.3
With Extender: f/3.6 to 4.6


Focus Type


Manual Focus


Iris Type








Minimum Object Distance   


2' / 0.6 m




7.7 x 6.3 x 4.2" / 19.7 x 15.9 x 10.7 cm (L x W x H)     




3.3 lb / 3.3 kg

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