Canon expands UHDxs lineup with CJ20ex5B zoom lens

Announced alongside the new EOS C79 camera, Canon also revealed the CJ20ex5B BCTV zoom lens. This lens expands the company’s lineup of 4K broadcast lenses for 2/3-inch sensor cameras.

The CJ20ex5B features a focal range of 5.0-100mm (10-200mm with optical extender), which will work well for things like END, EFP and sports productions.

Delivering 4K UHD image quality

According to Canon, this lens is designed for broadcast cameras that have 2/3-inch sensors. It delivers 4K UHD image quality and features a built-in 2x extender that can expand the zoom range up to 200mm. Canon says the CJ20ex5B lens can achieve “high-level” 4K UHD performance across the entire zoom range because it incorporates UD and Super-UD lens elements and a fluorite coating. They ultimately help reduce chromatic aberration and minimize ghosting and flaring. Canon’s also reduced focusing fluctuation because it incorporated an improved inner focusing system.

Canon CJ20ex5B zoom lens
Canon CJ20ex5B zoom lens. Image courtesy: Canon


One key aspect of the new CJ20ex5B zoom lens is its portability. In total, the lens weighs 4.76 lbs. Its form factor measures out to be 9.9 inches long.

Enhancements over the previous model

The CJ20ex5B lens also improves on a few operational controls over previous models. First, the power-on button now allows the value encoder to initialize at the same time as the lens is turned on. This allows users to operate the lens more quickly. Also, the lens has an onboard display and is compatible with the Canon G-Series zoom and focus controllers.

Key features

  • Hybrid Concept wide & telephoto
  • UHDxs class 4K optical quality
  • 5.0-100mm focal length (10 -200mm with optical extender)
  • f/1.8 – f/2.95 maximum aperture
  • Built-in 2x extender
  • Virtual systems compatibility via 16-bit encoder
  • Enhanced digital drive unit

Pricing and availability

The Canon CJ20ex5B 4K UHD Portable Zoom Lens will release early 2021. You can learn more at

Image courtesy: Canon

Sean Berry
Sean Berry
Sean Berry is Videomaker's managing editor.

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