Canon has patented a variable optical low-pass filter, or (OLPF) which uses the autoexposure sensor to change the low-pass effect up or down. Patent Publication No. 2016-173437 (Google Translated) Published 2016.
9. 29 Filing date 2015. 3. 17 Performing object recognition using an image sensor AE sensor Using a variable OLPF for false color reduction Image quality decreases when focus Read more. . . . canonrumors.com