Uploaded May 2019 | Updated September 2026, 3 weeks ago

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Find out how the high-torque Ring-type USM(Ultrasonic Motor) drives
heavy focusing lenses within the RF85mm F1.2 L USM lens with high
precision.

Canon: EF/RF L SERIES
https://global.canon/en/imaging/l-lens/
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Official Canon website
http://global.canon/