My camera light is very old and out of sync with the SLR. Is it necessary to change the lights? The original lamp is also Golden Eagle's. Thank you. The machine is D3 100.

Out-of-sync is usually caused by lights or flashes. The synchronization speed of cameras is generally high, but many flashers, especially those made in China, cannot exceed1125. For example, Yongnuo flasher is generally stable at1100, but at 125. Just try to slow down the synchronization speed appropriately. If the light is unstable and the flash time is inaccurate, the same method can be used. If the requirements are not high, it can be handled with a lower synchronization speed. If the requirements are higher, it will be changed.