A ping-pong ball camera obscura.
Cabe
Patrick A
PA
Department of Psychology, University of North Carolina at Pembroke, 28372-1510, USA. patrick.cabe@uncp.edu
D004867:Equipment Design; D005123:Eye / Q000033:anatomy & histology*; D006801:Humans; D008953:Models, Anatomic; D010781:Photography / Q000295:instrumentation*