Patent: How Canon Increased AF Point Spread in the EOS 5D Mark IV

Northlight has broken down a patent that shows how Canon was able to increase the spread of the AF points in the EOS 5D Mark IV. A Canon patent shows how by replacing the sub mirrors with laminated diffraction gratings, the normal angle of relflection can be altered, adding or subtracting to the usual angle. In Read more...

patent how canon

2016-8-29 15:35