| 摘要 |
PURPOSE:To provide the titled device with high dustproof and light shielding characteristics and to make the device compact by making the switching operation of a switching optical system interlock with the operation of a film feeding means. CONSTITUTION:The film feeding means for feeding a film to the 1st and 2nd apertures is arranged and the switching operation of the switching optical system is made to interlock with the operation of the film feeding means. When a photographer operates an operation member of a camera to switch the mode from TEL to WIDE, a finder is switched, a part of lenses in the photographing optical system is receded, a WIDE switch is turned on, a motor 101 is rotated forward, a lever 101 is switched to the clockwise direction, a movable mirror 107 is switched to the wide side, and then power is transmitted to a spool. The spool 106 winds up the film an brings the regulated photographing position of the film to a WIDE aperture position.
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