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[OM] Re: Lighting an airship? was Re: Re: Flash for E500

Subject: [OM] Re: Lighting an airship? was Re: Re: Flash for E500
From: "Jeff Keller" <jeffreyrkeller@xxxxxxxxx>
Date: Fri, 16 Nov 2007 21:33:30 -0800
Tim,

Is that 1/2  x  C  x   V**2  or some other measure? Do you have any
idea what "marketing" does to get the watt-second ratings of the
studio flash?

-jeff

On 11/16/07, Tim Hughes <timhughes@xxxxxxxx> wrote:
>
> Chuck,
>        The T32's are actually 70J.
> Studio units tend to waste the light produced a bit more (reflectors less 
> effective) and also with
> larger tubes the lamp conversion efficiency is a little lower.
>
> Tim Hughes

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