#Flash Sync Speed

flǽš sɪ́ŋk spíd

Flash sync speed is the fastest shutter speed at which a camera and flash can sync. Commonly this is 1/200 or 1/250. If your camera's flash sync speed is 1/200 and you shoot at a faster shutter speed than that while using a flash, your shutter will close before the flash can be fully captured by the sensor, resulting in black bands in the frame where the shutter can be seen.