Focus & Depth

Depth of field, rack focus, and optical tricks that guide the eye through space.

5 techniques

Deep FocusNear and far planes remain acceptably sharp so the eye can roam the whole stage.

Shallow FocusNarrow depth of field isolates the subject against soft backgrounds.

Rack FocusShifting focus between planes during a shot to redirect attention.

Split DiopterOptical split that holds two different distances sharp in one frame.

BokehAesthetic quality of out-of-focus highlights shaped by the lens aperture.