One of the key things for capturing high-speed, fast-flying liquids is fast flash duration. A common mistake that people make when photographing splash shots is focusing too much on what shutter speed they use. In actual fact, it is the speed and duration of the burst of flash that freezes motion, not shutter speed. The shutter speed is barely relevant at all in a darkened studio and only needs to be set to fast to cut out bright ambient surroundings.
Flash duration is the length of time of the burst of light emitted from a studio light (or speedlite). This can vary depending on the type of light and even from brand to brand. The faster the flash duration the better
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