Photo Glossary
Q. What does it mean to drag the shutter?
A. Dragging the shutter is a flash exposure strategy in which a photographer manually sets a relatively slow shutter speed (usually 1/8 to 1/30 sec, depending on the scene), this technique produces more background detail in a scene than typical automatic flash exposures record. Dragging the shutter is often employed by event photographers in dimly-lit indoor settings with relatively stationary subjects, and it relies on the instantaneous flash burst to freeze a subject sharply. (Without the flash, any subject or camera movement would produce objectionable blur at these shutter speeds.)
With a TTL- dedicated flash system, the camera's meter will automatically produce the correct exposure for the flash-lit foreground subject. To determine what shutter speed to set for the background, meter it and set the shutter about about a stop faster. With brightly lit backgrounds or animated subjects, watch out for ghosting.
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