An image capturing device includes image sensor, capturing a first image in a first image capturing region, capturing a second image in the first image capturing region at a shorter exposure time than that of the first image, after capturing the first image, capturing a third image in a second image capturing region at a shorter exposure time than that of the first image, after capturing the second image; and capturing a fourth image in the second image capturing region at a longer exposure time than those of the second and third images, after capturing the third image; and combining unit configured to carry out alignment processing between the images using the second image and the third image, and combine the first image and the fourth image on the basis of a result of the alignment processing.