Circle of Confusion Calculator

Calculate the circle of confusion for accurate depth of field calculations.

Calculation Settings

Camera Sensor

Print Size

Viewing Distance (cm)

Visual Acuity Factor

Circle of Confusion

25.012 mm

Full Frame (35mm)

CoC Values

Standard (Zeiss)25.0116 mm

Strict (Critical Work)28.8467 mm

Relaxed43.2700 mm

Custom (Your Settings)2.5557 mm

Calculation Details

Sensor Diagonal43.27 mm

Enlargement Factor7.5x

Print Diagonal12.8"