Archived posting to the Leica Users Group, 1996/05/17

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To: leica-users@mejac.palo-alto.ca.us
Subject: Re: Condenser light vs. cold light?
From: Eric Welch <ewelch@gp.magick.net>
Date: Fri, 17 May 1996 09:50:36 -0700

At 11:39 PM 5/16/96 -0500, you wrote:

>I use a condenser light for my enlarger but I heard that for proper Zone
>system, cold light was preferable.
>I want to hear your opinions.

The main thing to remember is to adjust your development for the enlarger.
I've gotten good results from both kinds. Leica's enlargesr seem to be a mix
of both, though the V-35 is more diffusion. What kind of enlarger are you using?

Older cold lights can cause problems with VC paper. The color is way off,
but there are filters, and exotic heads that take care of that. Or a newer
replacement.

Ansel Adams used to talk about "soot and chalk" tonal range with condenser
light. I think he's probably right. You certainly don't get the smooth
gradations you can get with diffusion, but again, I think development is
more important. Others say there isn't a significant difference. Zone system
itself has no such requirement. You can use any material and tool you want
to get great results. So unless you feel your shadow detail is to "strong"
or not enough detail because the black is so strong, maybe you can try to
use diffused light. Some condenser enlargers have accessories to diffuse
their light.

Another thing, is that diffusion light will definitely reduce the dust
specks on the print. yet, there isn't a significant loss of sharpness at the
same time. I don't know why. 

==========================
Eric Welch
Grants Pass Daily Courier