Of course, most of us understand that this is a misnomer and that the 50mm lens does not change at all to become an 80mm lens when used on a different camera. For instance, the popular Canon EF 50mm f/1.8 lenses have an 80mm equivalent focal length when used with a Canon Rebel series camera. We also commonly use the phrase “equivalent focal length” to describe the change in the field of view as captured by an APS-C sensor. However, the term is ubiquitous in identifying the altered field of view caused by using smaller sensors in cameras along with full frame lenses.
Nikon and Sony APS-C cameras yield a 1.5x crop factor, while Canon APS-C cameras have a 1.6x crop factor.Īnd, invariably, if you use the phrase “crop factor,” someone is going to yell at you and tell you that you aren’t cropping anything. Anyone that’s shot a DSLR in a remotely serious manner is aware of the crop factor for APS-C format cameras when compared to their full frame cousins.
