Increasing Flash/Strobe Output without Increasing Power

Started 4 months ago | Discussions thread
jlafferty Contributing Member • Posts: 739
Re: Increasing Flash/Strobe Output without Increasing Power

Sure. Just as the standard reflector “increases” the light output reaching the subject when compared to bare bulb, or a softbox with double diffusion. But in reality the light output isn’t changing, just the efficiency of how it’s preserved - the same number of photons are coming out of the bulb in each case.

elliotn wrote:

jlafferty wrote:

You’re also mistaken that a fresnel “increases strobe output”. It doesn’t, and once you test it should be obvious why - you’re putting a piece of glass over the head, and thus reducing output by forcing the light to pass through a medium.

I'm puzzled. Surely a fresnel have the ability to increase the brightness on the subject by several stops (compared to a standard reflector)?

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