[pure-silver] Re: Are most photographers visual learners... a little OT
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Sat, 10 Nov 2007 12:28:58 -0800
----- Original Message -----
From: "Dave V" <DValvo@xxxxxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Saturday, November 10, 2007 9:19 AM
Subject: [pure-silver] Re: Are most photographers visual
learners... a little OT
Becky, I'm sure I'm not typical of those that read this
post. I have more science background than photographic
(trying to fix that in retirement). I have a masters degree
in Image Science from RIT and spent 36 years at EK from
building photographic test systems to introducing new B&W
papers. I have taught the science side of photography to
thousands of people (most at Kodak) but also in 5 countries.
You can't imagine how trilled I am in retirement to finally
shoot images for myself rather than test targets or
Shirley's. (Whoops! I just let a Kodak tidbit secret out
of the bag. The first Kodak female model's name was
Shirley. Every time someone needed model images, Shirley
was called. And we called the process ....get some
"Shirley's" on this new film or paper. When a new model
came along, with a different face, she was still called
Shirley. After almost a hundred years of shooting tests and
models there have been a lot of Shirley's. ) You won't
believe how boring it is to look at Shirley's.
The things Shannon is doing is using an instrument to
measure density and a pencil to plot the results. A great
learning experience and a lot more precise than "looking "
at an image.. Some people have listed the books printed
that describe the process. That said. Before Kodak
introduced sensitometry and densitometry does anyone know
how the manufacturing coating process was tested and
controlled????
---------------------------------------
Do you know when Kodak began to use sensitometric
testing? The basis of the science is due to Hurter and
Driffield. The citation is to their paper:
Ferdnand Hurter and Vero Driffield, "Photochemical
Investigations and a New Method of Determination of the
Sensitiveness of Photographic Plates", The Journal of the
Society of Chemical Industry, May 31, 1890
Certainly Mees must have been cognizant of this but I
wonder if GE or anyone else at EKC was. Mees joined Kodak in
1912 but the principles of H&D must have been known there
earlier.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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