Let f be the lens focal length, N be the lens f -number, and c be the circle of confusion for a given image format. The H hyperfocal distance is approximately given by:
Depth of field - Wikipedia, the free encyclopedia , miosis).
DOF formulas[edit]
The basis of these formulas is given in the section Derivation of the DOF formulae; [10] refer to the diagram in that section for illustration of the quantities discussed below.
Hyperfocal distance[edit]
<span>Let be the lens focal length, be the lens f -number, and be the circle of confusion for a given image format. The hyperfocal distance is given by
Moderate-to-large distances[edit]
Let be the distance at which the camera is focused (the "subject distance"). When is large in comparison with the lens focal length, the d