Synchronizing Photo Flash Lamp With a Camera Shutter (Aug, 1932)
Synchronizing Photo Flash Lamp With a Camera Shutter
THE difficulty of synchronizing the flare of a photo flash lamp with the click of the shutter is frequently encountered by enthusiasts of the camera art. There’s a way to overcome this difficulty, however, and that is by constructing the little gadget shown in the accompanying photo.
The contrivance consists of a flat type pocket flashlight battery mounted between two pieces of wood, on the top of which is affixed a common porcelain socket to hold the photo flash lamp.
On the base of this baseboard is mounted a pair of contacts in such a position that the loading lever will push them together when the shutter clicks. The wiring is illustrated in the insert.
Synchronization is achieved by the simultaneous clicking of the shutter and the closing of the photo flashlamp circuit through the silver contacts. The duration of the flash is 1/50 of a second, which occurs when the shutter is wide open.
For convenience, the flash lamp unit is secured to the head by an elastic band, thus leaving the hands free to operate the camera. The lamp should be backed by an aluminum reflector.