| 摘要 |
PURPOSE:To realize photography with films in various film sizes and use of economical films, to make a decision on arrival order, and both photography of common and a panorama possible by controlling a film feed varying device right before a focal plane by a switching device. CONSTITUTION:Mask plates 2 and 3 are opened and closed by coupling pieces 13-15, pins 16 and 17, and links 18a and 19a when a both-surface size switching lever 11 is rocked around a shaft 12; and the size of an aperture part is 36mm.X 24mm. as full size at a position F, 18mm.X24mm. as half size at a position H, and slit size at a position S. A feed amount variation operating piece 23 is moved as shown by an arrow by the lever 20 of the shaft 12a, a pin 21a, and a bell crank 22. This operating piece 23 presses a feed pawl 4 according to the amount of rotation of the lever 11. Therefore, the lever 11 is only switched to take a photograph of optional picture plane size. |
