Crop Factor Calculator

Calculate crop factor and equivalent settings between different camera sensors.

Lens & Sensor Settings

Focal Length (mm)

Aperture (f/)

Source Sensor (Reference)

Target Sensor (Compare To)

1.61x

Smaller sensor (cropped)

Equivalent Focal Length80.5mm

50mm on Full Frame (35mm) = 80.5mm on APS-C (Canon)

Equivalent Aperture (DOF)f/2.9

FL to Match FOV31.1mm

Full Frame (35mm)46.8° diagonal

APS-C (Canon)30.0° diagonal

Source Crop Factor1.00x

Target Crop Factor1.61x

Light Gathering Ratio2.60x