Re: Indoors film speed


John Erbes (erbesj@milwaukee.tec.wi.us)
Wed, 19 May 1999 16:45:34 +0000


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



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