Konica Corporation

Yoshichika Noda

Yuichi Atarashi

Toshifumi Iijima

Kiyoshi Yamashita

Hiroshi Kibayashi

Shuri Mizoguchi

Hideaki Haraga

Masami Fujita

Kiyoaki Hazama

Takao Hosaka

Ken Ishida

Kazuhisa Aratame

Kijiro Suzuki

Kei Kaneiwa

Jun Kitahara

A lens-fitted film unit including a main body; a photographic film, pre-loaded in the main body; an electronic flash unit; a shutter unit; a camera lens; and a diaphragm. In the lens-fitted film unit, a guide number of the electronic flash unit, a T-number determined from the camera lens and the diaphragm and a shutter speed of the shutter unit are determined so that A is not more than 8.5 when A represents an EV value of a reference exposure amount of the lens-fitted film unit under a stroboscopic photographing state minus 1.5; and intensity of a latent image, formed on the photographic film under the condition that a reference reflection panel being placed at a predetermined distance between 2-3 m from the lens-fitted film unit is illuminated by the electronic flash unit without other lights in the stroboscopic photographing state, corresponds to intensity of a latent image obtained under a photographing condition of photographing luminance not more than A&plus;5.0 in EV value.

Lens-fitted film unit with a built-in electronic flash unit and image forming method based on a photographic film exposed by the lens-fitted film unit with a built-in electronic flash unit

Growing community of inventors

Hino, Japan

Yoshichika Noda