RE: Hypersensitization
Jim Spiri (plyboy@teleport.com)
Thu, 26 Sep 1996 08:39:28 -0700 (PDT)
At 12:39 AM 9/27/96 +1000, Gregory wrote:
>In addition to the use of hydrogen peroxide and mercury vapor,
>I think you can also include "pre-flashing" with a light exposure
>just below the minimum that registers on the film. All these
>methods increase the "speed" of the film by improving the shadow
>detail. There is no such thing as a free lunch. You can expect
>to have greater fogging and reduced contrast, all things being
>equal. (Of course, all things are never equal in photography. :-)
At one school, i thought the "safelights" weren't (safe). After being mocked
as uptight, i was able to demonstate the fogging, and got a couple
safelights changed. They were "put back" shortly after- seems the students
couldn't get the same "print quality" without the pre-fog...
-------------------------
Plywood and Rhetoric
graphic design from both sides of the brain
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http://www.teleport.com/~plyboy
"Momma DID raise a fool"