What Is Crop Factor? How Does It Affect The Photos I Take?

Crop factor is a number used to calculate the effective focal length of a camera lens on a cropped sensor or micro four thirds camera, compared to the same focal length on a full-frame camera. Photos taken with cropped sensor and micro four thirds cameras are in effect zoomed in when compared to the same focal length on a full-frame camera. Photos taken at the same focal length on cropped sensor and micro four thirds cameras have a narrower field of view, meaning you get less in the photo.