| 摘要 |
A stop device for an objective lens capable of automatically stopping even when the diaphragm blades are shifted along with the shifting operation of the objective lens. When the normal photography is made, the shifting operation knob is set at the position of zero shift so as to rotate the stop ring to set it at a desired stop value. Upon release of the shutter button, the diaphragm blades are set to the desired stop value through the aid of the aperture control ring. When the shift photography is made, the knob is rotated to shift the objective lens and the aperture control ring, etc. in the predetermined shifting direction. The stop-down ring and the aperture control ring is interconnected so as to set the stop ring at a desired stop value for enabling the release of the shutter button.
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