| 摘要 |
A camera is provided with an object lens, an aperture and a guiding device for an image-recording medium. The camera includes a device for providing generally scattered or white light to be incident on a first portion of the image-recording medium and a light adjusting device for varying the dissipation of the white or scatted light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing device with a focal length in a first area being infinite and in a second area being a relatively short focusing light on the image close to the lens system, for example, on the plate held in front of the lens system. A light enhancement device is also provided for increasing the light on the first portion of the image-recording medium.
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