I can remember when autofocus was relatively new and many photographers distrusted it. Now it’s the other way around – autofocus has become so good and so ubiquitous that manual focus lenses are a rarity. It’s easy to forget that sometimes it’s better to turn it off and use manual focus instead.
A good example of this is when you use a wide-angle lens to take a landscape photo. In this situation, you probably want to record the entire scene as sharply as possible. But how do you do this when the nearest part of the scene may be only centimetres (less than an inch) from your camera?
The answer is that you need to understand depth of field and be willing to take control and decide exactly where you want to focus the lens, rather than leave it up to the camera. Read More: http://digital-photography-school.com/landscape-photography-hyperfocal-distance
