Crop Factor Calculator
Calculate crop factor and equivalent focal length
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Crop Factor: The ratio of the diagonal of a camera sensor to the diagonal of a full-frame (35mm) sensor. It affects the effective focal length and field of view of lenses. A crop factor greater than 1 means the sensor is smaller than full-frame, resulting in a narrower field of view.
Common Lens Equivalents
Wide Angle
24mm
Full Frame = 38mm APS-C
Standard
50mm
Full Frame = 80mm APS-C
Portrait
85mm
Full Frame = 136mm APS-C
Telephoto
200mm
Full Frame = 320mm APS-C
Popular Camera Crop Factors
Canon EOS R5
Full Frame (1.0x)
No crop factor
Canon EOS 90D
APS-C (1.6x)
1.6x crop factor
Nikon D850
Full Frame (1.0x)
No crop factor
Nikon D7500
APS-C (1.5x)
1.5x crop factor
Sony A7 IV
Full Frame (1.0x)
No crop factor
Olympus OM-D E-M1
Micro Four Thirds (2.0x)
2.0x crop factor
Crop Factor Photography Tips
- Higher crop factors provide more "reach" for telephoto lenses
- Crop sensors are often more affordable than full-frame cameras
- Wide-angle photography is more challenging with high crop factors
- Depth of field is affected by crop factor and aperture
- Consider crop factor when choosing lenses for your camera
- Full-frame sensors generally provide better low-light performance