[rollei_list] Re: Plus X with Perceptol
- From: CarlosMFreaza <cmfreaza@xxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Wed, 24 Feb 2010 06:23:03 -0300
There was a Kodak intensive propaganda to link TMax films with TMax
developers at the time. I only could add to Mark previous post that
even today there are some pages mentioning the original main purpose
for TMax developers, f.e.
"KODAK T-MAX is an excellent and versatile high-energy developer
designed specially for Kodak's T-Max films. T-Max gives good contrast
and film speed with any film, but it is especially food with T-Max 100
and 400 when used at 75 degree. T-Max developer comes in a liquid
stock that is mixed 1:4 for a working solution":
http://glsmyth.com/Misc/Charts/charts.htm
And this statement is from Kodak directly in its TMax developers
Technical sheet:
"You can use T-MAX Developer to process roll sizes of
KODAK PROFESSIONAL T-MAX Films and most other
black-and-white continuous-tone films". Tmax films are mentioned for
the first place and in capital letters; they also say _and_ most other
films:
http://www.kodak.com/global/en/professional/support/techPubs/j86/j86.pdf
Before TMax films introduction in the 1986 Photokina, Kodak tested
them intensively with Kodak D 76 obtaining excellent results, it was
the reason TMax developer only appeared some time after the TMax films
introduction in the market. It seems evident Kodak wanted to take
commercial advantage of the TMax films success introducing a new
"dedicated" developer to these films, but there still are users
preferring to develop the TMax films with D 76.
Carlos
2010/2/23 Richard Knoppow <dickburk@xxxxxxxxxxxxx>:
>
> ----- Original Message ----- From: "CarlosMFreaza" <cmfreaza@xxxxxxxxx>
> To: <rollei_list@xxxxxxxxxxxxx>
> Sent: Tuesday, February 23, 2010 9:26 AM
> Subject: [rollei_list] Re: Plus X with Perceptol
>
>
> Richard:
> I recall that Kodak T-(Tabular grain) Max films appeared
> about 1986 and if my memory serves me good, T-Max developers appeared
> some time later, I also believe to recall that Kodak announced these
> new developers were specially made to work with the new T grain
> emulsions and I recall an interview to a man of Kodak where he
> explained these developers were more suitable for the T-grain than D
> 76 in spite of excellent results obtained using D 76. There was some
> initial controversy among the users in the photographic magazins
> forums 'cause some of them wrote they obtained better results
> developing the TMax films in D 76 than in TMax developer. It was a
> period when I left film developing but I bought photographic magazines
> regularly, however perhaps I'm wrong and my memory does not serve me
> good, it wouldn't be the first time.
>
> Carlos
>
> I don't remember Kodak stating that the T-Max developers were especially
> formulated for T-Max films, perhaps they did, it would be interesting if you
> could find a citation, but there is good evidence that the developer use
> during product developmet was D-76. D-76 will give somewhat finer grain on
> both T-Max and other films. T-Max developers are good for pushing and tend
> to produce somewhat longer and straighter characteristics from all films.
> Xtol is better than either because it will give similar curves and speed to
> T-Max RS but has noticably finer grain and good sharpness.
> I used T-Max RS regularly for a time. I didn't know then that it could be
> diluted to increase development time. Times in full strength working
> solution are pretty short. However the working solution can be diluted 1:1
> with more managable times and little or no effect on grain, speed, or tone
> rendition. I think RS can also be replenished when diluted 1:1. The grain
> probably is of little concern for negatives larger than 35mm unless you make
> very large prints from Rollei negatives.
>
> --
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
>
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