Manual focus

There are two ways of focusing: the automatic one (built in your camera) and the manual one (by hands). When you use manual focus the automatic focus is disabled. Usually, manual focus is used when you have to deal with low light or macro/special effects while taking a picture. With some digital cameras, manually focus can be used only to a few present distances. Other digital cameras use the normal focus ring on the attached lens to focus, like in conventional photography.

Being often implemented on a fly-by-wire basis, the manual focus inputs to focus in or out are relayed to the autofocus system, changing the focus type.









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