What is a snoot? A snoot is just a funny name for a piece of equipment — generally a tube or similar object such as a conical, cylindrical or rectangular shape — that fits over a studio light or portable flash.
It allows you to control the direction or area of coverage of the light. Basically, it makes the light more focused and concentrated by directing your light and focusing it. This makes the coverage very narrow and the light falls-off very sharply giving you a harsher or harder light.
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