17-120mm T2.95-3.9 PL
  • 4K Cine-Servo Lens
Canon CN7x17 - 4K Cine-Servo Lens 17-120mm


17-120mm T2.95 lens provides cinematographers and broadcast operations with a compact, lightweight design (only 2.9 kg) using Canon optical elements, while offering outstanding performance and reliability in professional shooting environments.

The new lens is fully 4K-ready, with a high optical resolution and support for Super35mm large-format cameras. An 11-blade aperture diaphragm helps ensure an artistic and beautiful representation of out-of-focus areas (or “Bokeh”)

The lens also features a high 7x zoom magnification, wide focal length range of 17mm to 120mm with T2.95 at 17-91mm, T3.9 at 120mm, and a 180º smooth rotating focus ring. Acknowledging that broadcasters often need to control zoom, focus and iris/aperture in different ways than filmmakers, Canon has developed this zoom lens with full external servo control for drama, documentary and other broadcast productions.

The lens also features a new design with imperial and metric markings on the lens ring with scale marks on two side and a flexible focus ring supporting both 0.8 and 0.5 gear pitch.

The servo drive unit is compatible with industry-standard protocols for control from a number of lens controllers including Canon’s standard broadcast lens controllers (ZSD-300D/FPD-400D) and multiple industry standard cinema lens controllers. The drive unit can be easily removed for cinema-style shoots and can be easily re-attached without any manual re-alignment. A 16-bit metadata output enables connection to virtual studio systems.

The servo drive unit is optimised with high-speed zoom, iris and focusing to allow operators to respond rapidly during fast-paced scenes whilst also offering unrivalled control over slow zooming.

High optical performance for single-chip large-format cameras (4K resolution)

  • 7x zoom with hugely versatile 17-120mm focal range
  • Designed for hand-held broadcast use
  • Removable drive unit supports cinema applications
  • Lens-camera communication function
  • Durable and rugged design
  • Suited to shoulder and tripod-mounted use
  • Easy control of zoom, focus and iris
  • 16-bit encoder output
  • Maximum T-number of T2.95
  • Robustly designed for reliability
  • Compatible with a wide range of accessories
Model Name CN7x17 KAS S/E1 17-120mm T2.95 EL-MOUNT
Mount EF
Zoom Ratio 7x
Focal Length 17-120mm
Maximum Aperture T2.95 at 17-91mm T3.9 at 120mm
Iris Blade 11
M.O.D (from Image Plane) 0.85m / 2.8'
Front Diameter 114mm
Approx. Size (WxHxL) 125.0 x 174.2 x 254.9mm
Approx. Mass 2.9kg
Pitch of Focus/Zoom/Iris Gear Focus: 0.8/0.5 Zoom: 0.5 Iris: 0.4
Drive Unit Specification
Maximum Speed Iris 1.3 sec
Maximum Speed Zoom 0.5 sec
Maximum Speed Focus 1.6 sec
Low-speed drive Zoom 300 sec
Number of encoder pulses Zoom 16 bits or more
Number of encoder pulses Focus 16 bits or more