The RF50mm f/1.8 STM lens uses a gear-type stepping motor to provide smooth and quiet autofocus when shooting both still and video, so focusing appears seamless while following a subject with Servo AF, or Movie Servo AF.
Canon RF 50mm f/1.4 L VCM Lens for RF Mount 6908C002
Canon RF 50mm f/1.8 STM Lens
New Canon RF 50mm f1.4 L VCM Lens
Canon RF 50mm F1.8 STM Lens Nifty Fifty
