2 A B C D E F G H I K L M N O P R S T U V W

Depth of Field

range in working distance for which the image is (acceptably) focused.

Image: Depth Of Field

Depth Of Field

DOF =  Far PointNear Point

The largest depth of field (namely infinity) we get when we focus the lens to the so called hyperfocal distance. The focus extends from H/2 to infinity.

see also Bokeh