| 摘要 |
PURPOSE:To realize the most desirable flux distribution characteristic in accordance with photographing conditions by deciding the flux distribution characteristic of a flash light emitting means corresponding to a photographic picture plane size and the focusing position of a photographing optical system. CONSTITUTION:A reflector 31 and a light emitting part 32 advance/retreat in accordance with the focal distance of a lens in the optical axis direction of the light emitting part, and a relative distance to a Fresnel lens 30 is adjusted to set a flux distribution angle. A panoramic print corresponding condensing driving part 34 changes the flux distribution angle in an up-and-down direction to be set to the flux distribution angle corresponding to the panoramic print where the upper and the lower sides of a photographing range are cut by following a command from a stroboscopic microcomputer 29 and changing a distance between the light emitting part 32 and the reflector 31. Namely, when a subject in a long distance is photographed in the case of panoramic photographing, the relative position between the lens 30 and the reflector 31 is kept and the relative positional relation between the light emitting part 32 and the reflector 31 is changed so as to decrease the flux distribution angle in the up-and-down direction and to increase the flux distribution quantity near the center, thereby effectively utilizing strobe light quantity. |
