Human Eye

A nearsighted eye focuses on nearby objects

. . . but . . .

distant objects will be fuzzy.

A diverging lens is used to make the image sharper.

A farsighted eye focuses on far away objects

. . . but . . .

nearby objects will be fuzzy.

A converging lens is used to make the image sharper.

Camera			Lenses in Combination
Return to Ch 19, Optical Instruments

(c) Doug Davis, 2002; all rights reserved