new kodak tmax 100

hi.

what is the right development time for the new version of tmax 100 35mm
film developed in ilfotec ddx ?
thanks !!

"Beppe Alborè" wrote in message
...
hi.

what is the right development time for the new version of
tmax 100 35mm
film developed in ilfotec ddx ?
thanks !!

The times for old and new T-Max films is very close. For
instance for both D-76 1:1 and Xtol 1:1 the time for the new
version is 9.5 minutes @68F and for the old version 10
minutes, for small tank agitation. I am not sure this would
make a significant difference. According to one report T-Max
was always made in the "new" coating plant and really hasn't
changed. The changes in time are just the variations in
retesting.


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Richard Knoppow
Los Angeles, CA, USA

Richard Knoppow wrote:

"Beppe Alborè" wrote in message
...
hi.

what is the right development time for the new version of
tmax 100 35mm
film developed in ilfotec ddx ?
thanks !!

The times for old and new T-Max films is very close. For
instance for both D-76 1:1 and Xtol 1:1 the time for the new
version is 9.5 minutes @68F and for the old version 10
minutes, for small tank agitation. I am not sure this would
make a significant difference. According to one report T-Max
was always made in the "new" coating plant and really hasn't
changed. The changes in time are just the variations in
retesting.

My time for a normal contrast negative decreased 2 minutes
with the New TMX. It represents a significant change in CI
vs. using the old time.

On average, the difference is a decrease of 1-2 minutes,
but depends on the developer/dilution. Could vary between
1/2 to 4 min. less. Never used DDX; suggest you test at
the old DDX times then 1 and 2 minutes less.

After posting this I looked at some rather old data sheets for
T-Max. They showed times for D-76 1:1 of 12 minutes @ 68F rather than
10 min as I stated. I am not sure where I got the 10 minute value,
probably from an older _Kodak B&W Darkroom Dataguide_. New T-Max shows
9-1/2 minutes for the same temperature. This is a significant
difference since a 25% change in time will make about a one paper grade
change in T-Max contrast.
Richard Knoppow
Los Angeles, CA, USA