Shutter time adjustment for a flash mode and/or film-leader location
AssigneeNippon Kogaku K.K.
InventorsKazuyuki Kazami, Yoshiaki Ohtsubo, Yasunori Kitamura
Life of this patent
Estimating the term…
Loading patent…
AssigneeNippon Kogaku K.K.
InventorsKazuyuki Kazami, Yoshiaki Ohtsubo, Yasunori Kitamura
Estimating the term…
In a photographic camera comprising an exposure time control circuit for controlling the shutter speed in response to the brightness of the object and a film frame number indicating device capable of indicating a usable range for frames allowing photographing operation and a non-usable range for frames not allowing photographing operation, wherein the shutter being controlled to a shutter speed independent from the shutter speed determined by said exposure time control circuit when said indicating device indicates said non-usable range, an improvement comprises a second exposure time control circuit for controlling the shutter with a shutter speed suitable for flash photographing and switch means for selecting the shutter speed control by the aforementioned exposure time control circuit or by said second exposure time control circuit in response to the indication of said indicating device in such a manner that the shutter is controlled by the shutter speed determined by said second exposure time control circuit when said indicating device indicates said non-usable range.
In a photographic camera comprising an exposure time control circuit for controlling the shutter speed in response to the brightness of the object, a film frame number indicating device capable of indicating an usable range for frames allowing photographing operation and a non-usable range for frames not allowing photographing operation, a second exposure time control circuit for controlling the shutter with a shutter speed suitable for flash photographing and means for controlling the shutter to a shutter speed independent from the shutter speed determined by said exposure time control circuit when said indicating device indicates said non-usable range, an improvement wherein said means for controlling the shutter comprise switch means for selecting the shutter speed control by the aforementioned exposure time control circuit or by said second exposure time control circuit in response to the indication of said indicating device in such a manner that the shutter is controlled by the shutter speed determined by said second exposure time control circuit when said indicating device indicates said non-usable range.
Dependencies are inferred from the claim text.