An image file generation device includes: an image file generation unit that generates an image file having stored therein a plurality of sets of image data obtained in a batch via an image sensor; and an image recording unit that records the image file into a storage medium, wherein: if the image file generation unit determines that an image file-splitting condition has been satisfied while the batch of image data is being obtained via the image sensor, the image file generation unit ends image data storage into the current image file and starts image data storage into a new image file.