1. An image pickup apparatus comprising: an image pickup unit configured to pick up an image of a subject to generate image data; an analyzing unit configured to analyze a background region of the image data; and a control unit configured to perform control such that panning-related photographing conditions, including an exposure time, are changed in accordance with a result of the analysis made by the analyzing unit, wherein the analyzing unit analyzes at least one of a contrast in the background region, a difference in brightness between a subject region of the image data and the background region, a difference in color between the subject region and the background region, and a difference in color difference between the subject region and the background region.