| 摘要 |
A flash photographing system includes a camera unit having an ordinary camera structure for taking a picture and a flash unit having a flash lamp for flashing operation. The system includes a first signal line for transmitting a flash start signal from the camera unit to the flash unit and a second signal line for transmitting a flash unit side information signal from the flash unit to the camera unit. The camera unit includes a mixing circuit for mixing a timing signal with a camera side information signal to produce a composite timing signal which is transmitted via a third signal line to the flash unit which is provided with an interpreting circuit for interpreting the camera side information signal transmitted as a component of the composite timing signal.
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