Digital Strobe Definitions
By Ikelite
The amount of light is changed by controlling the flash duration, and this is usually referred to as the intensity. The flash tube takes time to reach maximum output, and then its light diminishes. Stopping anywhere in this time period is how the amount of light is controlled.
Duplicating the time duration of a pre-flash may not produce the same amount of light because different strobes takes different times to reach their peak intensity. The exposure of many digital cameras is dictated by measuring the pre-flash, so its intensity is important."
Digital Strobe Definitions
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