Camera back which allows two discrete images to be sequentially

Details Camera back which allows two discrete images to be sequentially Camera back which allows two discrete images to be sequentially

1996-04-26

1997-09-09

Metjahic, Safet

Photography

Plural image recording

Having alternative single image recording

396335, 396340, 396544, G03B 142

Patent

active

056665792

ABSTRACT:
A camera back for sequentially exposing two spatially separate images on regular or self-developing film adapted for a variety of single lens cameras. The camera back includes an adapter plate disposed between the camera and a film back wherein a dark slide is movable by the force of gravity between two positions in the adapter plate, by rotating the adapter plate 180 degrees, thereby blocking a lower half of the film from the exposing radiation. The dark slide is moved exclusively by its own weight, thereby making complicated levers and light-tight feedthroughs unnecessary.

REFERENCES:
patent: 2989907 (1961-06-01), Nelson
patent: 3088390 (1963-05-01), Zimmerman
patent: 3124050 (1964-03-01), Bay
patent: 3748987 (1973-07-01), Bjork et al.
patent: 3762293 (1973-10-01), Moodie
patent: 3852780 (1974-12-01), Augustin, Jr. et al.
patent: 4149790 (1979-04-01), Smith
patent: 4561742 (1985-12-01), Stella et al.

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