Vignetting Attachment for Multiple-Exposure Cameras.
Description:
Patent for a multiple exposure camera attachment that allows multiple exposures to be made on a single plate or film, blending the exposures perfectly while avoiding harsh lines. The attachment is a telescopic tubular attachment with "a plurality of apertured light ray interrupting diaphragms" (lines 77-78).
Date:
April 5, 1921
Creator:
Moine, Selest E.
Partner:
UNT Libraries Government Documents Department