Despite all of the marketing hype behind eye detect autofocus, there are just as many times it fails as it succeeds.

In today’s world of increasingly sophisticated autofocus systems, it can be all too easy to fall into the trap of becoming reliant on this technology. There are still many situations in which autofocus fails completely.

Your autofocus system’s speed and accuracy has as much to do with the lens you are using as it does the camera.