From: Jeffrey D. Mathias (jeffrey.d.mathias@worldnet.att.net)
Date: 02/12/00-06:44:09 AM Z
Les Newcomer wrote:
> ... it can take just about any simple question and turn it into an
> incredibly accurate jumble of mathmatical formulas that will take you a
> week to under stand. ...
The so called film speed may also be different depending on the printing
process. For example Pt/Pd places the speed point on the straight line
portion of the curve. And even if the film is scientifically calibrated
(what ever that means), the camera and lens can affect the speed used.
Oh, and the film processing can alter the speed. The only accurate way
to determine the speed is to make some exposures and see what works with
given equipment and film and printing processes.
And then to make it more fun, all light meters may not read the same.
The thing to do is make spome exposures and see what works, everything
else is just a jumble.
-- Jeffrey D. Mathias http://home.att.net/~jeffrey.d.mathias/
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