We already established that system thickness is reduced by supersampling. In some applications, however, total system volume is more relevant than thickness. Therefore, we now examine how multi-aperture system volume compares to that of a single-aperture system . We again treat the two different architectures (supersampling and segmented FOV) separately. In both cases, we first derive the footprint of the system. It is given by either sensor footprint or total aperture area , depending on which one is larger. In the single-aperture case, is simply the area of the single system aperture. The values for the multi-aperture system are and , which is now the sum of all individual aperture areas . Next, we derive system height. In both cases, system height scales with effective focal length . To , a part of the optical system thickness is added, depending on system complexity and placement of the principal planes. We disregard the thickness of the image sensor, sensor carrier and casing, as these values are small compared to the focal length and are not affected by the system architecture.