On Oct 17, 6:25 pm, "Richard Knoppow" <dickb...@[EMAIL PROTECTED]
> wrote:
> "UC" <uraniumcommit...@[EMAIL PROTECTED]
> wrote in message
>
> news:1192627937.515690.258770@[EMAIL PROTECTED]
>
> > On Oct 16, 8:18 pm, Dana Myers <dana.my...@[EMAIL PROTECTED]
>
> > wrote:
> >> Richard Knoppow wrote:
> >> > My experience the T-Max 400 is quite different from
> >> > UC's:
> >> > I find the tone rendition good for both indoor and
> >> > outdoor
>
> > What the NEW TMY will look like is a mystery. I anticipate
> > it will be
> > somewhat more like Tri-X, but only slightly so. That is, I
> > predict the
> > curve will look more like that of TMX (T-Max 100) than of
> > Tri-X Pan
> > (400) or Plus-X Pan (125) for 35mm.
>
> Lots of snipping of a very long thread...
>
> I suspect that Kodak has taken the op****tunity to refine
> the emulsion making process. I suspect it drifted with time
> and performance may have suffered.
> When Tri-X production was moved from the old B&W plant
> to the color film plant a few years ago it changed a bit. I
> think the same thing happened, the emulsion was not changed
> so much as the process was brought back to optimum. At that
> time people began re****ting they were getting finer grain
> from ISO-400 Tri-X than from 400T-Max. This should not have
> been the case and suggested to me that the T-Max line had
> drifted. AFAIK, T-Max films have always been made in the
> same plant as color film so I suspect the "new" TMY is
> partly the result of getting the manufacturing process back
> to par. Its likely that the new stuff may be slightly finer
> than Tri-X as it should be. We shall see. Kodak has
> published a developing chart for the new version of the film
> but has not posted any sensitometric data yet.
>
> --
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickb...@[EMAIL PROTECTED]
question to Kodak:
No doubt Kodak has been asked this one before: according to rumors
circulated by various parties of which I am not a member, the 'silver
content' of various films and papers is supposed to have been
diminished by deliberate acts of Kodak to achieve greater
profitability over the past few decades. Specifically, some have
re****ted that films such as Tri-X have been changed over the last 20
or 30 years to contain less silver. I would like Kodak to comment on
this.
I am not referring to the new facility.
Answer from Kodak:
Regarding Kodak Tri-X products, there are three basic Tri-X products
that professional photographers might be involved with. I'm not sure
what other films might be included in your description of "films such
as Tri-X." A significant change in silver content of traditional B/W
films would be accompanied by a significant change in other
characteristics -- tone reproduction, contrast, and granularity, for
example. Consistency of product has always been a prime goal in the
manufacture of Tri-X products, and, over the years, comparisons of
Kodak products with other manufacturers' products have shown Kodak to
be consistently ahead of other manufacturers in this regard. Any
"breakthrough" in technology that would allow a significant change in
the silver content or image structure would be better introduced to
the public as a new product than as a "secret" change to the Tri-X
films. In fact, such a breakthrough was introduced with the T-Max
films. Although some people within the company expected sales of Tri-X
would tail off following the introduction of the T-Max films and that
the products would be discontinued due to lack of sales, this has not
happened.
The current "best practice" for manufacturing these products is to
control the characteristics of all the materials going into the
product, and to control all parts of the manufacturing process so that
the "standard" product formulation will produce product with
consistent characteristics every time. This has been found to work
better than the procedure used in past years, when the film
formulation engineer had the freedom to "tweak" a component slightly
to compensate for apparent changes in raw materials in order to make
the resulting product closer to established aims. So it is probably
not true to say that a particular Tri-X product has always had the
exact same silver level for the past 30 or 40 years. But based on my
experience for the last 20 or so, I doubt that there would be any
variations greater than 5%, and certainly no permanent, intentional
level ****ft.
If you should have additional questions, please be sure to revisit our
site as we are continually adding information to enhance our sup****t.
For immediate answers to commonly asked questions, please visit:
http://kodak.broaddaylight.com/kodakprofessional/index.html
For product and technical information, service, sup****t, and
downloads: http://www.kodak.com/go/professional
For information on ProPass Magazine: http://www.kodak.com/go/propass
Regards,
Peter V. Kodak Information and Technical Sup****t Kodak Professional
Ph. 800-242-2424 ext. 19
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