From: Robert W. Schramm (schrammrus@hotmail.com)
Date: 04/20/02-12:11:13 PM Z
Chris,
Probably the most important thing is getting the plate polished correctly which takes a lot of work, skill and knowledge which is hard to impart with words alone. You really need a daguerreotypist looking over your shoulder. But I will not discourage you.
The chief advantage of the mercury process is speed, This process uses iodine and bromine fuming and mercury development. Exposures run from 30 seconds to 2 minutes depending on your lens and the light available. The Becquerel process uses iodine fuming only but the speed of the plate is much slower. Typical exposures are 20 minutes or more. Rather than developing in mercury vapor, the Becequerel plate is, as you know, developed by exposure to red light. Development times can run for hours.
Take a look at my web site. There you can see some of my Dags. Also on the 2nd page there are some sources for daguerreotype. www. schrammstudio.com
Good luck or as M. Daguerre would have said, "Bob chance!."
Bob Schramm
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