A new patent related to advanced CMOS based autofocus system from Canon has appeared online. The patent is an advanced pixel based contrast and phase AF and combination of both the two will help in adjusting focus in great way. However we can expect that this advanced Pixel based AF system may be engineered in the upcoming Canon 7D Mark III or Canon 80D.
Patent Publication No. 2015-121778 (Google Translated)
- Published 2015.7.2
- Filing date 2013.11.21
- Image plane phase difference AF using 16 sub-pixels
- Light field contrast AF that uses a
- It does focus adjustment (Microadjustment) from the difference between the image plane phase difference AF and contrast AF