The revers­ing stere­o­scope for the Véras­cope F40 was intro­duced in 1951. It is made of var­nished mahogany and was spe­cial­ly designed for exposed 35 mm film used with the F40, with which it shares the same film-advance syn­chro­niza­tion sys­tem. Its revers­ing sys­tem uses roof prisms. Illu­mi­na­tion comes from above through a frost­ed-glass screen. As an acces­so­ry, film take-up cas­settes were avail­able. The focal length of its eye­pieces was cho­sen to repro­duce the image in true depth. It could be used free-stand­ing or mount­ed on a cast-met­al base.
A sec­ond Mod­el appeared in 1952. It is made of black bake­lite, and its adjust­ments and oper­a­tion are strict­ly iden­ti­cal to those of the wood­en mod­el. An elec­tric illu­mi­na­tor mount­ed on top pro­vides improved bright­ness. It uses the same cast-met­al base as Mod­el 1.
Note: a ver­sion engraved ‘Veras­cope 40’ also exists for this model.
(from: Moulin­ier et al. His­toires de vision­neuses stéréo­scopiques français­es. Limo­ges, 2025, pp. 164–165. Author’s translation.)