Although we have come to rely more and more on auto focus, there are a few scenarios when it works against you photographing wildlife. Often, I find my subjects were obscured by objects in the foreground, which the camera seems intent on focusing on. In fact, if you've ever tried photographing wildlife, you have discovered the animals carry with them a stalk of grass that they hold up in front of their face whenever a camera is pointed at them. A good example is an animal in a savannah. Take this image. The camera was constantly focusing on the grass and never on the lion. Switching to manual focus enabled me to focus accurately on the lines I before she moved on and the opportunity was lost. Another time I might use manual focus is when photographing a landscape just like the number of points available in modern cameras. You can guarantee there is never one in the exact point in the viewfinder. You need it if I've composed a scene with my camera on a tripod, which, of course it should...
. Bay is often quicker and more convenient to switch to manual focus. Macro photography is another area where manual focus is often a better solution because cameras sometimes stroll to focus automatically at very close distances. There are also times when auto focus simply doesn't work in low light. It may be too dark on because some cameras, relying contrast to retain focus. If there's no contrast, there is no focus. Try focusing on a clear blue sky and you'll see what I mean. In all of these cases on whenever the lens goes into permanent hunt mode, that is when the camera cannot attain focusing the lens keep searching back and forth to in closest focus distance and Infinity Manual Focus provides the quickest, most accurate way to focus the camera. So in most situations, auto focus is your best option, however, is not always the Holy Grail. And there are times when doing it the old fashioned way will save you time and make sure you get the shot that you want. I don't know