| 摘要 |
Disclosed is a camera having a focus detection module 130 inserted into or withdrawn from an optical path between an image sensing optical system (152-155) and a CCD image sensing device (111). An image pick-up signal from the CCD image sensing device (111) is used as ordinary image data for recording when the module (130) is withdrawn from the optical path and as image data for rangefinding when the module (130) is inserted into the optical path. The focus detection module (130) is internally provided with first through fourth mirrors (131, 132, 133, 134), a field lens (135) provided between the second and third mirrors and secondary image forming lenses (137) provided between the third and fourth mirrors, whereby two secondary images are formed on the CCD image sensing device (111). The two secondary images are used for rangefinding or focusing.
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