Focus Stacking Step Size

Computes DOF = 2·c·n·(m+1)/m² and effective aperture n·(1+m) for macro stacking precision.

Sensor preset (sets CoC)

You can override the preset below.

Circle of Confusion, c (mm)

F-number, n (nominal)

Magnification, m

Safety overlap (% of DOF used)

Set 100% for pure DOF step; 70–80% is typical.

Units

Based on Extreme-Macro’s DOF relation and step-size practice. Validate empirically per setup.