Originally Posted by MikeWhy
Sure - in fact, that's exactly how contrast-detection AF works in LiveView on the newer bodies, and also how typical point-and-shoot cameras focus. It can be quite accurate - in fact, focusing a Canon dSLR in LiveView with a 10x magnification on the LCD is just about the most accurate way to focus a Canon camera. But if you've tried that, or used a P&S camera, you know that relatively speaking, contrast detection AF is very slow, sometimes taking nearly a full second to achieve focus. That's one reason that drives P&S users to dSLRs - it certainly was for me, too many missed shots of my fast-moving toddler!
Reply With Quote