Focus is a critical control on any video camera. Shots with blurry subjects are unwatchable, while shots with sharp subjects and blurry backgrounds can give a cinematic feel to your footage. In almost every situation, a professional videographer will keep the focus control on manual. Camcorder autofocus may seem convenient and easy, but it can’t predict your subjects movements, or choose the right point of focus in many situations. A few examples are if your subject isn’t in the center of the frame, you’re trying to shoot through glass or a fence, or there are reflections or movement in your shot that confuse the autofocusing system. In low light situations, lower end cameras often have a breathing effect that can ruin a great shot. DSLR’s built specifically with autofocus for video in mind may perform well, but many DSLR cameras temporarily change your exposure to achieve proper autofocus, which is definitely a bad idea in the middle of a shot. In addition, autofocus may not work in manual mode, so you won’t get the benefit of it without sacrificing control over aperture, shutter speed, and iso. We admit, that manual focus can be difficult on lower end cameras that don’t have a focus ring, but whenever possible, manual focus should be the goal.