| 摘要 |
A digital camera comprises a first image-capturing optical system having a fixed focal length lens 2 and an image sensor 12 , and a second image-capturing optical system having a zoom lens 3 and an image sensor 14 . The first image-capturing optical system has a first electronic zoom range, and the second image-capturing optical system has an optical zoom range between a predetermined minimum focal length and a maximum focal length. A tele end of the first electronic zoom range is set to be at a position nearer to the wide side than the maximum focal length of the second image-capturing optical system and to be a position nearer to a tele side than the minimum focal length of the second image-capturing optical system and a wide end of the first electronic zoom range is set at a position nearer to the wide side than a minimum focal length of the second image-capturing optical system, so that the first electronic zoom range and the optical zoom range partially overlap. A control processor and timing generator 40 switches zoom at the tele end of the first electronic zoom range from an electronic zoom of the first image-capturing optical system to the optical zoom of the second image-capturing optical system during a zoom-in process and at the wide end of the optical zoom range from the optical zoom of the second image-capturing optical system to the electronic zoom of the first image-capturing optical system during a zoom-out process. |
