Canon announced new Flex Zoom lens series of EF Cinema Lenses. The Flex Zoom lens series of lenses are designed to create cinema-style productions with greater efficiency. Introducing the new Flex Zoom lens series, the CN-E20-50mm T2.4 L F/FP wide-angle zoom lens (to be released in June 2022) and the CN-E45-135mm T2.4 L F/FP telephoto zoom lens (to be released in September 2022).

The new Flex Zoom lens series are designed for filmmakers in their pursuit of cinematic beauty, equipped with new large-aperture lenses featuring high-level optical design and performance while maintaining the style and ease-of-use of Canon’s EF Cinema lens series. With the introduction of zoom lenses with focal length ranges of 20-50mm for wide-angle and 45-135mm for telephoto, Canon now provides zoom lenses that cover the same range as its six existing prime (single focal length) lenses. The versatility of these new lenses supports efficient visual production workflows for a wide range of scenarios including film, TV programmes, commercials and much more.

CN-E20-50mm T2.4 L F (EF mount)

When paired with full-frame or large-format cameras, these lenses fully leverage the cameras’ signature shallow depth-of-field to produce smooth and natural background blur, resulting in powerful visuals. What’s more, the lenses maintain a bright T2.4 aperture (1) across their entire zoom ranges, making possible image capture in natural light, even in darker environments. This contributes to less cumbersome lighting setups and video production workflows that are more efficient and cost-effective.

CN-E45-135mm T2.4 L F (EF mount)

Featuring an optical configuration with optimal placement of lens elements including a large-aperture aspherical lens and an anomalous dispersion glass lens, the CN-E20-50mm T2.4 L F/FP and the CN-E45-135mm T2.4 L F/FP lenses mitigate colour smudging and chromatic aberrations. This enables them to maintain high optical performance from the centre of the image to the periphery when paired with 8K cameras.

In addition to supporting EF-mount data transmission (2), the new lenses are also compatible with /i Technology (3) from Cooke Optics. With this capability, recording metadata such as focus, zoom, aperture and lens model can be transmitted via the lens mount for visualization on the camera itself. This additional information helps contribute to more efficient workflows not only during on-location recording, but also during post-production and editing.

Pricing and Availability


Release date

CN-E20-50mm T2.4 L F (EF mount)

Early June 2022

CN-E20-50mm T2.4 L F (PL mount)

CN-E45-135mm T2.4 L F (EF mount)

Early September 2022

CN-E45-135mm T2.4 L F (PL mount)


(1) The f-number of a lens refers to the level of brightness calculated based on focal length and lens aperture. The t-number, more commonly used to describe the brightness of cinema lenses, incorporates a lens’ f-number along with the measure of light transmission.

(2) Only compatible with EF mount cameras 

(3) Only compatible with PL mount cameras 

* Information and pictures courtesy of Canon Singapore and GLOO *

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