Consider the scene here. By throwing the building and the newspaper out of focus, the woman stands out clearly in the photo and is not lost in a confusion of distracting elements. In either case you will need to study the effect in a high-resolution video monitor to make sure you are achieving the effect you want. Follow Focus I n video production we are often dealing with moving subjects. A person may quickly move outside the limits of depth of field unless the lens can be quickly refocused.
Professionals know which way to turn the focus control to keep a moving subject in sharp focus.
The technique of follow focus is used to subtly refocus the camera to accommodate subject movement. The Macro Lens Setting M ost zoom lenses have a macro setting that enables the lens to attain sharp focus on an object only a few inches or even a few millimeters from the front of the lens. Although lenses differ, to reach the macro position on many zoom lenses a button or lever on the barrel of the lens is pushed to allow the zoom adjustment to travel beyond its normal stopping point. M any newer lenses are called continuous focus lenses . These are internal focus lenses that can be smoothly and continuously adjusted from infinity to a few inches without manually having to shift the lens into a macro mode.