Mirographe

The Mirographe, sold by Reulos, Goudeau and Co. around 1900,[1] was, with the Chrono Pocket Gaumont, one of the French amateur film cameras to use the reduced format.

Film stock

Its films measured 6 meters by 21mm wide and had 80 frames per metre.[2][3] They did not include perforations, but rather a notch on the side between each frame. The driving of the film was done by a system of "snail" wheel, having a rim about 5mm that was advanced the notch of the film. The diameter of this wheel is constant for 3/4 of the rotation (the image is fixed) and then declined steadily while leading the film, allowing for the film to rest between frames.[4][5]

Models

There are two models of Mirographe . The first is used for shooting, the direct view and projection of films.[4][6] A second, type B, was only used for projection.[7]

The Mirographe was also marketed by Mazo and Georges Mendel in 1901.

gollark: I mean, in an extreme edge case, what if there's only one person in the entire universe, they punch a wall, and randomly die for unrelated reasons? How is that going to cause more violence down the line?
gollark: That's not some sort of universal truth, just a rough heuristic which is somewhat accurate.
gollark: I mean, those apply to some narrowly defined things in physics, for limited definitions of "action" and such, but not in general so far as I can tell.
gollark: I don't think so, unless you really stretch the definition most of the time or claim it's metaphorical or something.
gollark: Like "colourless green ideas sleep furiously" and such.

References
  1. Nature. Dunod. 1901.
  2. "Caméra réversible film 21 mm (CNC-AP-12-1124) - Collection - Catalogue des appareils cinématographiques - La Cinémathèque française". www.cinematheque.fr.
  3. Raymond Fielding (1983). A Technological History of Motion Pictures and Television. University of California Press. pp. 130–. GGKEY:6ZBS232TCDQ.
  4. Nansouty (1894). La vie scientifique.
  5. Progresso fotografico. Progresso. 1901.
  6. Carnet-agenda du photographe à l'usage des amateurs et des professionnels, 1900-1901. J.B. Baillière et fils. 1902.
  7. "projecteur de film 21 mm à encoches latérales (CNC-AP-96-49) - Collection - Catalogue des appareils cinématographiques - La Cinémathèque française". www.cinematheque.fr.


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