Some people get off from watching naked ____ (fill as you desire). Photographer Guy Viner gets his fix by watching naked lenses. Just his luck that he is also a talented X-Ray technician giving him access to the special camera needed to fulfill his desire.
While we've all see illustrations of the internals of lenses, Guy's work shows the internal glass elements, gears, levers and CPUs that make up a lens.
Guy has worked over recent years and collected a nice collection of both classic and new lens p0rn: