[pure-silver] Re: Contrast paper developer-story
- From: Janet Cull <jcull@xxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 12 Aug 2007 20:01:39 -0400
Dear Dave,
I love you. :o)
Janet
p.s. Thank you for sharing your story. Makes me feel better. My
problem isn't safelights, but seems there often is one. A challenge,
I mean.
On Aug 12, 2007, at 7:37 PM, Dave V wrote:
I will tell you a true story. It is embarrassing for me but I
include it in my B&W Photography courses because of the learning
experience. We had a Thomas Sodium vapor safelight in one of our
darkrooms at Kodak for the purpose of testing it with new papers
that we designed. One evening I stayed late to make some prints
for a workshop I was taking with John Sexton. I wasn't thinking
and I was using the Thomas safelight and an Ilford Multigrade
additive head enlarger. I was having a terrible time getting the
contrast I wanted but did the best I could.
At Sexton's workshop each participant would put up their work and
have it judged by the others. Then John would have his say. Well
everyone knew I worked for the 'Yellow Box' and pretty much what I
did there. Imagine my feelings when John commented on my work by
saying, "Dave, we have a problem!" "Oh No!" I thought. "Why
me?" "Safelight fog!" he said. And immediately I knew what
I had done....and why I couldn't get the contrast I was trying to
get with that print.
The embarrassing problem for me was I am the guy who wrote for
Kodak....."How Safe is Your Safelight?"
Dave
(I'll Never use a Thomas safelight Again)
----- Original Message ----- From: "Richard Knoppow"
<dickburk@xxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Sunday, August 12, 2007 3:17 PM
Subject: [pure-silver] Re: Contrast paper developer
----- Original Message ----- From: "Adrienne Moumin"
<photowonder2010@xxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Sunday, August 12, 2007 11:55 AM
Subject: [pure-silver] Re: Contrast paper developer
Last year I posted a similar query, albeit using my Saunders LPL
4550 XLG (which, as far as I can tell from the manual, does not
have replaceable filters like the Durst).
I am glad to see this topic revisited, the answers are helpful
and give me several avenues of exploration since I have been
wrestling w/the same issue.
I recently came across this online article about safelights on
Paul Butzi's website:
http://www.butzi.net/reviews/darkroom.htm#Safelights%20(Thomas%
20Duplex,%20Patterson)
---------jump down to safelight section by clicking link on the
left-hand list
Both Kodak and Ilford have procedures for testing safelights.
Kodak's is called K-4. I can send it to you if you can't find it
on their web site. The procedures are not identical but both test
for the sensitization effect of the safelight on the paper. This
can result in fogging even when a simple exposure to the safelight
without also being exposed to the enlarger image can cause fogging.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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