Scioptic /(?)/

Sci·op·tic

Scioptic

a.
  1. Of or pertaining to an optical arrangement for forming images in a darkened room, usually called scioptic ball. (Opt.)

Phrases & Compounds
Scioptic ball
the lens of a camera obscura mounted in a wooden ball which fits a socket in a window shutter so as to be readily turned, like the eye, to different parts of the landscape.