Since the film has already been exposed at EI 1600 your best chance would be
to process in Diafine if you can find it in Italy (I believe that Tetenal
makes a similar two-part developer but Tetenal is hard to find in the US and
I have not personally tested their product).

You underexposed it, preumably. There is really no cure for
underexposure. Next time, use a faster film.

The link for Kodak's technical data for Tri-X 400 is:

http://www.kodak.com/global/en/professional/support/techPubs/f4017/f4017.pdf

The agitation instructions are:

"Small-Tank Processing (8- or 16-ounce tank)"

"With small single- or double-reel tanks, drop the loaded film reel into the
developer and attach the top to the tank. Firmly tap the tank on the top of the
work surface to dislodge any air bubbles. Provide initial agitation of 5 to 7
inversion cycles in 5 seconds; i.e., extend your arm and vigorously twist your
wrist 180 degrees."

"Then repeat this agitation procedure at 30-second intervals for the rest of the
development time."

There is a section on "Push Processing" Tri-X at 1600 that has detailed time
and temperature suggestions for the following developers: TMax, TMax RS, HC110B,
D76, D76 (1+1), XTOL, and XTOL (1+1).

Technical data for Ilford with development tables is on the web. Their
publications include data for Tri-X.

The link to their film developers is:

http://www.ilford.com/html/us_english/bw.html

The links from the European Product catalog
(http://www.ilford.com/EuroPAL/default.asp)
don't appear to be working.

For powdered developers (ID-11, Microphen, Perceptol):

http://www.ilford.com/html/us_english/pdf/powder_dev.pdf

Ilford's agitation method is different:

"The following agitation is recommended for spiral
tank processing with ILFORD chemicals. Invert the
tank four times during the first 10 seconds. Repeat
these four inversions during the first 10 seconds of
each subsequent minute of development. At the
end of each agitation sequence tap the tank firmly
on the work bench to dislodge any air bubbles
which may be trapped in the processing spiral.
This method of agitation should also be used with
the fixer."

"Drain off the developer 10 seconds before the end
of the development time immediately fill the tank
with the next process solution."

My first choice would be undiluted Microphen, followed
by undiluted XTOL, D76 and ID11.

All times are for a diffusion enlarger head. For a condenser
head, decrease the times by 20% (use 4/5 the diffusion time).

Also, I'd suggest shooting a few frames of Tri-X on an unexposed
roll under similar conditions that your film was exposed (same
lighting & metering method), cut the exposed frames out of the
camera in the dark, and process it for testing.
and

<italian>
dai un'occhiata a www.digitaltruth.com poi segui il link per la
"massive development chart". li' trovi tempi per tantissime
combinazioni pellicola/sviluppo.

for english folks, i just suggested to follow the link to the massive
dev chart on digitaltruth.com, which is better than the recommended
development times.

regards,

Should we bother to point out that stage lighting is often enough for normal
exposure/development without the push? The reason behind pushing is often
based on erroneous light meter readings.
-Lew

Hi,
I ran a custom B&W darkroom for 11 years and did a lot of push
processing.  I tried several methods to reduce "grain" in negatives.  I
had to push a roll of Tri-X to 3200 and was really worried about grain.
I realized that agitation was the key to holding grain down.  The
emulsion is like grease when wet and silver halide salts will clump up
creating grain.

I poured in the developer and rapped the tank once to remove air
bubbles.  Then every minutes I would rotate the tank once 180 degrees.
Because I am only worried about developing the surface of one side of
the film all I had to do was change the developer within one or two
molecules of the emulsion that would be sufficient agitation.  I am not
claiming this as the ultimate cure.  But it worked for me.

When taking a picture of an indoor concert or play you
want to pull the film, not push it.

Remember: "Expose for the shadows and develop for
the highlights."  The shadows in a performance are very dim and
require a lot of exposure: either meter them with a spot meter
or take an average metering and open up 1-2 stops by using Tri-X
at ASA 100-200.  Decrease development by 25-35% to compensate for
brightly lit highlights such as the performer's heads.

Unfortunately, you have already underexposed the film by ~4 stops
and holding any shadow detail is going to be hard to do.

Try using a heavily compensating developer such as D-23 [you have
to make this yourself from Metol and Sulfite] and/or use a water-bath
technique.  Other approaches are to use a very dilute developer with
very little agitation or to use a divided developer.  Google for
'compensating developer' and 'water bath development'.

A good set of articles on dealing with high lighting ratios is available
at:

http://www.codemastersworkshop.com/frontdoor/cont_pt1.htm

  This is two stops which is about the limit for pushing.
First, use a developer which delivers the maximum film
speed. Kodak T-Max, T-Max RS, or Xtol, Ilford Microphen or
DDX are all Phenidone based developers which give you nearly
a stop more speed than D-76.
  Secondly, increase development time by about 33%, that
will gain another stop. Agitation should be normal. If the
pictures are important I would shoot a test roll and process
it. For 2 stop push a 50% increase in development time is
usualy prescribed but the conrast goes up with development
time so you may get difficult to print images.
  Film has lower contrast in the lower exposure areas. The
idea of push processing is to increase the contrast of these
areas to make the image easier to print. However, the
contrast of the normally exposed part of the image will also
be increased resulting in high contrast for bright objects
in the image. In practical terms it means you will probably
have to do some burning in in printing.
  Of course you will also have increased grain but Tri-X
seems to push pretty well and a lot of people like the
slightly "gritty" look it has when pushed.

Hello,
thanks to all for the answers.  I believe that it is not the better thing,
to make a push processing for the quality of the image and it is also true
that I did not have informs to you to you on the light of the concert:
Jazz club to 5 meters of distance;  lighting system spot;  measurement of
the light on the face of the musicians;  f 2,8-4 1/45-1/20s.
I have made two rolls and the first one I have developed it with hc110B 20°C
17min.  Agitation standard.
Hour we see turns out to you.
Mario.

http://www.mariocaroni.it