The physical interaction is at the level of the negative; light interacts with some light-sensitive material and thereby changes it. For these images I use traditional photographic processes, but in a new way. The negative for what I call ephemeral-process photography is not permanent and must be kept in darkness, or it will degrade over time. But the image can be permanently captured with a digital scan. The original negative is thus damaged by the light of the scanner, and so only the digital image remains.