Yes. Orthophoto is produced by manipulating aerial photo to correct for movement of the aircraft and variations in the camera angle. Orthophoto has a top-down perspective and uniform scale, just like a map. Aerial photos are the original, unprocessed images. While they appear to be taken from an overhead viewing angle, they will inherently contain small distortions and can not be used as a map to accurately measure distance and direction like the orthophoto can.