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What are examples of circumstances where rear curtain sync would be preferable to front curtain sync flash?

MikeW
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wow
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1 Answers1

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Second curtain sync is used when you want to get natural motion where light trails lead to an image as opposed to leading away from it. Normally a flash will go off at the start of a shutter (which is normally longer than the time the flash is active.) This results in a heavily exposed image followed by a trail of light. Second curtain reverses this by making the flash go off at the end so you get a trail of light leading to the more heavily exposed moment of time.

AJ Henderson
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  • I think you may have it the wrong way around. With a normal flash, the trails will be in front of a moving object and with a rear curtain flash, they'll be behind. If that's what you meant, then sorry but I misunderstood. – thomasrutter Apr 02 '13 at 23:44
  • @thomasrutter - yes, that is what I meant. Second curtain, the light trails lead to the image (ie, they look like the object is moving in the direction it is actually moving). – AJ Henderson Apr 03 '13 at 00:55