New patent suggests Canon is working on next-gen autofocus technology

Canon autofocus generations
(Image credit: Canon)

Canon Rumors has discovered a patent that suggests Canon may be working on a new type of linear focus motor for its next generation of autofocus lenses. With the rise of hybrid cameras which are equally adept at shooting stills and video, autofocussing has to be both fast and accurate for stills, while also being smooth and as quiet as possible during video capture.

An illustration of Canon's stepper motor AF system, a mainstay of recent affordable lenses such as the EF 50mm f/1.8 STM (Image credit: Canon)

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Ben Andrews

Ben is the Imaging Labs manager, responsible for all the testing on Digital Camera World and across the entire photography portfolio at Future. Whether he's in the lab testing the sharpness of new lenses, the resolution of the latest image sensors, the zoom range of monster bridge cameras or even the latest camera phones, Ben is our go-to guy for technical insight. He's also the team's man-at-arms when it comes to camera bags, filters, memory cards, and all manner of camera accessories – his lab is a bit like the Batcave of photography! With years of experience trialling and testing kit, he's a human encyclopedia of benchmarks when it comes to recommending the best buys.