DAVID DISTEFANO (zfd@lightspeed.net)
Wed, 19 May 1999 17:59:48 -0700
John Erbes wrote:
>
> At 11:39 AM 5/19/99 -0700, Gary Miller wrote:
> >Speaking of the difference of shooting outdoors as opposed to shooting in
> >the studio, why are the outdoors negatives so much more dense. If I am
> >taking a meter reading both inside and outside shouldn't the negatives
> >ultimately be the same density if I am rating the film at the same ASA. I
> >know that Carl has mentioned the difference between using a spot meter
> >reading outdoors as opposed to a flash meter reading in the studio. But
> >shouldn't it all be relative? My shoots from outside are much more dense and
> >stained than my studio shots.
>
> Gary,
> It's my understanding that film speeds are slower indoors typically by a
> stop or so as compared to their rated outdoor speed. I don't know why,
> but I'm sure that someone on the list will explain.
>
> John Erbes
In THE BOOK OF PYRO by G. Hutchings on page 66 he discusses the
increased densities of the negs. due to the internal flare bouncing off
the inside of the camera. The increase is, according to his testing,1
stop in added exposure.
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