Canon CJ12ex4.3B IASE S 4K ENG Zoom Lens

£20,280.00 £16,900.00
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Canon CJ12ex4.3B IASE S 4K ENG Zoom Lens


Canon today unveils the CJ12ex4.3B, a new 2/3” portable 4K zoom lens with the world’s widest focal length – an incredible 4.3mm, designed for professionals shooting interviews or live broadcast, including sport and news.

Canon today also announces that it is developing a new compact 2/3” 4K all-purpose-zoom lens. Further bolstering Canon’s 4K broadcast lens range for cameras employing 2/3” sensors, the versatile new lens will be optimised for both indoor and outdoor shooting, across a variety of applications including, sporting events, live broadcasts, as well as television dramas and commercials.


  • 4K resolution 2/3” portable wide angle lens with 12x zoom
  • Exceptional 4.3mm focal length at the wide end extends to 52mm (104mm using the built-in 2x extender)
  • Stunning optical performance right to the edge of the image when paired with a 2/3” 4K compatible camera
  • Combines 4K quality with lightweight design and compact size comparable to HD lenses for comfortable on-shoulder shooting
  • Sustained 4K performance even when using the built-in 2x extender
  • Proven, high-quality 16-bit encoder captures precise information on zoom, focus and iris and allows support for aberration correction immediately on start-up
  • 3x 20-pin connectors make for effortless use with existing Canon HD lens accessories and virtual systems.



Zoom Ratio 12x
Image size 2/3"
Built-in Extender 2.0x
Range of focal length (with Extender) 4.3-52mm (8.6-104mm)
Maximum Relative Aperture(with Extender) 1:1.8 at 4.3-40mm1:2.4 at 52mm(1:3.6 at 8.6-80mm)(1:4.8 at 104mm)
Angular Field of view - 16:9 Aspect Ratio (9.6x5.4mm, with Extender) 96.3° x 64.2° at 4.3mm10.5° x 5.9° at 52mm(58.3° x 34.9° at 8.6mm)(5.3° x 3.0° at 104mm)
M.O.D. from lens front 0.3m
Object dimensions at M.O.D. - 16:9 Aspect Ratio (9.6x5.4mm, with Extender) 76.4 x 43.0cm at 4.3mm6.0 x 3.4cm at 52mm(38.2 x 21.5cm at 8.6mm)(3.0 x 1.7cm at 104mm)
Approx. Size (WxHxL) 163.5 x 108 x 247.8mm
Approx. Mass 2.1kg
Information Display Yes
Filter Thread Size (Hood / Lens Barrel) 127mm P0.75 / -
  (M.O.D. = Minimum Object Distance)