Judy Seigel (jseigel@panix.com)
Tue, 23 Nov 1999 13:35:36 -0500 (EST)
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On Tue, 23 Nov 1999, David J. Romano wrote:
> Joe,
> I've been researching light sources for a while because I'm building an
> enlarger for platinum printing. None of the sources are as inexpensive
> as the one Ed Stander suggested though. Keep in mind that any glass,
> like your contact frame must be able to transmit the wavelengths you
> need. That issue alone could be the topic of a long thread. Here are
> links to some vendors I've found.
and bear in mind that the "water white" (was it Starfire?) glass may or
may not be an improvement. I spent $125 or so for a vacuum easel "clear",
then ditched it for plain old $25 "green" glass because it didn't print
gum as well. For gum the "clear" was, as I recall, about 10% faster, for
platinum I gather the speed gain is somewhat more -- if it matters.
Judy
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| Judy Seigel, Editor >
| World Journal of Post-Factory Photography > "HOW-TO and WHY"
| info@post-factory.org >
| <http://rmp.opusis.com/postfactory/postfactory.html>
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