Increasing Flash/Strobe Output without Increasing Power

Started 4 months ago | Discussions thread
Ellis Vener
Ellis Vener Forum Pro • Posts: 11,714
Re: Increasing Flash/Strobe Output without Increasing Power

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)?

It might, depending on the design of the Fresnel and how well you focus it, in but only over a smaller area.

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