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Is Canon preparing to return a feature from the days of the EOS-3? The feature being eye-controlled autofocus.
A patent uncovered by Canon News shows us that Canon is working on the technology for eye-controlled autofocus for mirrorless cameras. Eye-controlled autofocus uses your eye to select the autofocus point, so no joystick or touchscreen interaction is required to move the autofocus point around.
Canon News explains Japan Patent Application 2019-129461:
We have a mirrorless camera (Canon specifically states this by including item 10, which is a display element for the viewfinder). The important pieces are 13a-13f which are light sources for illuminating the line of sight of the photographer’s pupil. The half mirror is in place so that 16 and 17 which is the image sensor that is used to monitor where the eye position based upon the pupil location. Read more analysis of this patent