1. An image capturing apparatus comprising: an image capturing device configured to capture images of an object; and a processor implementing the functions of a determination unit, a first composition unit and a second composition unit, wherein, the determination unit is configured to divide light receiving portions of the image capturing device into a plurality of areas and determine an exposure condition for each of the plurality of areas; the first composition unit is configured to couple each of the plurality of areas using a plurality of images obtained by continuously shooting of the image capturing device while changing a shooting angle and generate a plurality of first panoramic images; and the second composition unit is configured to compose the plurality of first panoramic images and generate a single second panoramic image that has an extended dynamic range.