Fuji Photo Film Company, Limited

Ikuo Fuutagawa

Katsuji Muramatsu

Yoshihiro Fujita

Keeji Kaneko

Keiichi Aoyama

Film magazine

In a photographic camera provided with a built-in strobo flash light device, the distance from the strobo flash tube to the optical axis of the taking lens of the camera is selected within the range of 4.5cm to 6.5cm. In order to prevent the red eye effect in color photography, the guide number of the strobo flash tube is selected within the range determined with respect to the distance from the strobo flash tube to the optical axis of the taking lens in accordance with the following formula; ##EQU1## WHERE GN is the guide number of the strobo flash tube and d is the distance from the flash tube to the optical axis of the taking lens.

Photographic camera with built-in strobo flash light device

A film magazine comprised of a cylindrical portion and a pair of end covers is provided with film speed indicating code means. The cylindrical portion of the film magazine is made of metal sheet applied with an insulating coating layer. The surface of the cylindrical portion is selectively provided with non-coated sections for indicating the film speed of the film loaded therein in accordance with a binary code system. The code which indicates the film speed is sensed by a small number of sensing contacts provided in the camera body. The non-coated sections for indicating the film speed are located in the inaccessible area of the film magazine so that the coding sections may not be damaged.

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Tokyo, Japan

Ikuo Fuutagawa