| 摘要 |
PROBLEM TO BE SOLVED: To realize an arrangement of an optical system without vignetting by arranging a silver salt photographing optical system and an electronic image pickup optical system so that their foremost surfaces are nearly on the same plane and the distance between the optical axes of both optical system are minimized. SOLUTION: A lens frame part including a lens constituting a silver salt photographing optical system 20 for guiding a subject image to a silver salt film is arranged on the front part of a camera body. The optical system 20 is constituted of a lens group 21 for focusing, a diaphragm mechanism 22 and a lens group 23 for zooming. Meanwhile, the electronic image pickup optical system 27 is constituted of the lenses 28 and 29 and a fixed diaphragm 30. The focal distance of the optical system 27 is fixed at the focal distance equivalent to the shortest focal distance of the optical system 20 having a zooming mechanism. In such a case, the optical systems 20 and 27 are arranged so that their frontmost surfaces are arranged nearly on the same plane and the distance between the optical axes of both optical system 20 and 27 are minimized.
|
