auto focus

Have you ever wondered how your camera’s AF system work ?  What the difference is between phase detection and contrast detection ?  I’ve explained all of this in my latest guest post on ProVideo Coalition, as well as an introduction to Canon’s latest method which is called Dual Pixel CMOS AF.  A method which looks set to shake up the possibilities with video AF on DSLRs. I’d love you to head on over and take a look at the article HERE.