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Maximum camera's shutter speed possible when using a flash

27 votes
Accepted

What exactly is flash sync speed, and should it be a factor in a buying decision?

Flash sync speed is the maximum shutter speed possible when using a flash. For most flashes, the flash sync speed, sometimes also referred to X-Sync speed due to the use of Xenon in the flash bulb its …
jrista's user avatar
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14 votes
Accepted

Why is my camera limited to a shutter speed of 1/250th when the flash is up?

The limitation has to do with synchronizing the length of the exposure with the length of the flash burst. The flash does not go off immediately...it occurs a fraction of a moment after the shutter ha …
jrista's user avatar
  • 70.8k