The term "giant's leap" is used to describe the large, rapid progress, and it is well known that in the world of imaging, the birth of photography in 1839 marked the giant's leap in the technology of image recording. If the steps of photography up to the digital camera were the steps of giants, the pinhole camera is truly "the steps of dwarfs. Even if you could see the outside world upside down in a darkened room, it would be an impossible dream to record it except by tracing it with your hand, which has not progressed much since BC. The plodding, slow-moving technology of the pinhole camera. And the light that is slowly taken in little by little through the small aperture. It is slow and low-tech. Gulliver is used as a synonym for giant, but in Swift's "Gulliver's Travels," Gulliver also appears as a dwarf. The dwarf Gulliver is small enough that he can enter the dark box of a pinhole camera by himself to take pictures. A world that is appropriate for one's stature, seen through a tiny hole, a fraction of a millimeter. It is not so bad to look at the dwarf world with the steps of a dwarf.