FILM WINDER IN CAMERA WHICH PERMITS CHANGING OF PICTURE SIZE

摘要

PURPOSE:To permit winding and rewinding with one lever in a camera for a Brownie size by mounting a film back having winding mechanisms for 35-mm. sizes and change mechanisms for rewinding. CONSTITUTION:A film back 12 having winding mechanisms for 35-mm. films is mounted to a camera having winding mechanisms for Brownie films from a winding lever to a gear 10 to make both films usable. A change knob 33 for rewinding changes over the gear trains of the winding mechanisms with a lever 41 when said knob is turned to permit rewinding of the film when the winding lever is turned. Two kinds of films are thus usable selectively as desired for convenience of use.