Method of sending and receiving signals in photography with camera and camera flash device for that method

摘要

This invention relates to a method of sending and receiving signals when taking photographs with flash by exchanging information obtained on the camera side and the flash side and flash device for this method. Its aim is to take photographs with flash avoiding mutual interference between the camera signal and flash signal through control of the light emission on the flash side and by stopping the transmission of the flash signal to the camera side, while sending camera signal from the camera side to the flash side when sending flash signal generated on the flash side to the camera side.