Why can the studio flash be synchronized with the camera flash?

Photo studio lights have light sense synchronization, so they can be triggered by a small flash, which can induce flash synchronization.

Second, you can use a sync line to sync the flash, but this seems to be not suitable for most digital homes now.

The third infrared synchronous sensor is divided into two groups: the flasher is connected to the hot shoe of the camera, the trigger receiver is connected between the power supply and the lamp body, and a flasher wire is connected to the position of the synchronous line. As soon as you press the shutter, the trigger device can receive the signal to trigger the flash. However, the domestic equipment has a problem that the trigger delay is long and cannot be synchronized with the short shutter. For example, if it is greater than1125 seconds, there may be problems of asynchronization or underexposure.