Term - Rear curtain sync
|Rear curtain sync||SWPP Photographic Glossary|
Friday 27th March 2015
Rear curtain sync
Is when the flash fires an instant before the second or rear curtain of the focal plane shutter begins to move. When slow shutter speeds are used, this feature can create a blur effect from the ambient light, i.e., patterns following a moving subject with subject movement frozen at the end.
Information provided by: SWPP
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