What Is Crop Factor, and How Do You Calculate It?
The term crop factor refers to the ratio of a specific sensor to a 35mm full-frame sensor. This factor determines the equivalent field of view of a lens when used on a camera with a sensor that is either smaller or larger than our reference full-frame sensor. Many people are familiar with the two common APS-C crop factors: 1.6x for Canon, and 1.5x for Nikon, Fuji, Sony, etc. But how do we get to this number, and how do you calculate the crop factor for other sensor sizes? Digital Sensor Sizes and Their Crop Factor These are the most common …