In order to obtain a digital still camera capable of storing only a desired image from photography images, a photography image data generation unit processes an image signal from a CCD to generate high-, middle-, and low-resolution image data. The insulating material is volumetrically compressed so that it exerts a reaction force that is equal to or exceeds an ambient pressure at the outer shell andor supports at least some of the weight of the inner tank. The elongated member may include a grasping region in the vicinity of the end. When the internet service is accessed via this communication connection, an additional control connection is established between the internet service and the service unit. The strained silicon layer increases charge transfer efficiency, decreases image lag, and improves blue response in imaging devices. The desired architectural construct can further be stabilized and doped to exhibit desired properties.