In photography, the distance in front of and behind the subject that appears to be in focus.

(geology) The depth below the Earth's surface of the hypocentre of an earthquake. / (optics) The field of view of a camera that is in sharp focus.

Alternative spelling of bit depth

(computer graphics) The number of bits (binary digits) used to represent the colour of a single pixel.

plural of focal depth

plural of Secchi depth

A measure of the turbidity of a body of water; the depth at which a Secchi disk is no longer visible.

The final depth of water in an open channel that is subject to continuous uniform flow

A device using echo sounding to measure the depth of a body of water

(psychology) Alternative form of depth psychology