Well, I want to know why we call them "cameras"! I mean, yes, there was the camera-obscura. But really, the word camera means "room" and not plastic/metal/wooden box.
Discuss ... :rolleyes:
As I understand it, "camera" doesn't mean "room" (as we use it) so much as "chamber" -- an enclosed space. The essential part of a camera is an enclosed space. Add a lens and a film holder, and you're ready to go.