Depth-of-Field Calculator

Circle of confusion

35mm / FX 0.025 APS-C / DX 0.017 Custom

From pixel pitch µm ×

Lens & focus

Focal length

Aperture

Focus distance

Acceptably sharp

Near limit—

Far limit—

Total depth—

Hyperfocal—

Magnification—

Formulas

Hyperfocal H = f² / (N·c). Near limit s·H / (H + s), far limit s·H / (H − s), infinite when the focus distance reaches H. Magnification f / (s − f).

Reverse mode: s = 2·Dn·Df / (Dn + Df), H = 2·Dn·Df / (Df − Dn), N = f² / (H·c). Focal length and CoC are in mm. The diagram uses a compressed scale so infinity fits on the right.