Abstract: A device for mounting an electronic flash on a camera, which comprises a flat box accommodating film, a substantially pyramidal-shaped projection protruding from the flat box, a lens provided at the end of the projection and a flash receptacle. The device includes a portion for mounting the electronic flash, a portion surrounding and secured to the projection and a hinged portion for removably securing the device to the camera.

Abstract: An electronic photo flash capable of being used in cameras which are constructed so that only the special flash of the trade name "Flip Flash" is used as an artificial light source. The electronic photo flash has a terminal board to be plugged into the flash socket which is for mounting the flash of such camera. With the apparatus of the present invention, it is possible to check whether or not the terminal board has been plugged positively into the flash socket by indicator means whose visual state will change to provide an indication of a positive connection.

Abstract: This invention provides a camera of a simple structure installed with an electronic flash. The shutter speed is fixed and the opening of an iris diaphragm alone is variable. Values of the iris diaphragm opening are indicated by pictures so that an appropriate value can easily be selected. Pictures include two kinds, namely pictures of weather marks indicating the weather condition and pictures of distance marks indicating the distance to an object to be photographed. These picture marks are interchanged by "on" and "off" operations of a switch of a power source of the installed electronic flash. More specifically, when the switch is put off, weather marks alone can be seen, and when the switch is put on, distance marks alone can be seen.