Title
Aids to drawing: The field camera
Caption
Aids to drawing: The field camera' Sketching with the aid of a portable tent-type camera obscura. Behind the lens mounted on top of the tent is a mirror angled at 45 degrees. The image collected by the lens was reflected in the mirror and projected down on to a sheet of white paper.
Engraving from "The Science Record" (New York, 1874).
Date
1874
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07115_011255P
License type
Rights managed
Available size
34,7Mb (2,2Mb) / 11,8in x 11,4in / 3543 x 3423 (300dpi)