摘要 |
PURPOSE:To always accomplish accurate focus detection even when the kind of a finder device is changed by incorporating a mirror for a focus detecting device for making a luminous flux incident on the focus detecting device in a camera main body. CONSTITUTION:In the case that any one of plural finder devices is selectively mounted in the camera main body 1, a sub mirror supporting plate 1-30 separates from the luminous flux incident port of the focus detecting device 1-14 in the main body 1 and the luminous flux L passing through the window of a main mirror is reflected on a sub mirror 1-15 and made incident on the focus detecting device 1-14. In such a state, a pin 1-31c is pushed up by a member in the finder device. Next, in the case of detaching the finder device from the main body 1, the pin 1-31c of a lever 1-31 is pushed down by a shutter release interlocking member in the main body 1 and the finder device is detached from the main body 1. After finishing the action of a shutter, the device is immediately restored to an original state. |