Both are excellent and the differences are small. XTOL is a little more of a pain to mix due to the minimum 5L packaging. Some people prefer replenished regimes. I prefer to use developers one-shot.
XTOL will tend to give slightly higher film speed than D-76. But it is difficult to generalize as it depends on the film. Acutance is virtually the same, but again this could vary depending on the film. XTOL seems to give slightly finer grain, but my tests were all with tabular films so I don't have data for Tri-X specifically.
With the tabular films I tested XTOL generally produced slightly higher contrast in the shadow area of the curve, with slightly flatter highlights, compared with D-76. I prefer either D-76 or XTOL at dilutions of 1+1 or 1+3. 1+1 is probably the most common dilution, at least for D-76.
Again, the differences are small.
TMax developer will tend to give a little more film speed with the tradeoff of slightly higher graininess.
These characateristics apply to normal development procedures. When pushing, all bets are off as far as image characteristics go.
Last edited by Michael R 1974; 01-06-2013 at 07:00 PM. Click to view previous post history.