Circle of Confusion Calculator

Calculate the circle of confusion (CoC) for your camera sensor. The CoC determines what appears acceptably sharp in your photos.

Sensor & Viewing Parameters

Sensor Width (mm)

Full frame = 36mm, APS-C = 23.5mm, M43 = 17.3mm

Sensor Height (mm)

Full frame = 24mm, APS-C = 15.6mm, M43 = 13mm

Megapixels

Viewing Distance (cm)

Typical viewing distance is 25-30cm

Print Size (inches diagonal)

Recommended CoC

0.0250 mm

Traditional Formula (d/1730)

ZZeiss CoC

0.0288 mm

RResolution CoC

0.0120 mm

VViewing CoC

0.0342 mm

DSensor Diagonal

43.27 mm

PPixel Pitch

6.00 um

EEnlargement

4.70x

Full Frame (35mm)0.029-0.030 mm

APS-C (Canon)0.018-0.019 mm

APS-C (Nikon/Sony)0.019-0.020 mm

Micro Four Thirds0.015 mm