Circle of Confusion Calculator
Calculate the circle of confusion for accurate depth of field calculations.
Calculation Settings
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"
💡
Help us improve!
How would you rate the Circle of Confusion Calculator?
Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
📚
Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.