1. An imaging apparatus comprising: imaging means for imaging an image at a first aspect ratio; and image processing means for creating a converted image by converting an original image at the first aspect ratio, which is imaged by the imaging means, to the converted image at a second aspect ratio, which is different from the first aspect ratio, by discarding a section of the original image as a discard section, and, if the selected magnification of the converted image is lower than a magnification of one, i. reducing the size of the original image according to the magnification and ii. then adding a margin to the reduced original image and discarding the discard section according to the magnification to maintain the second aspect ratio.