T-Max film thread, to PhotoDave etc..

Michael Taylor (Michael.Photography@btinternet.com)
Sun, 25 Jan 1998 14:05:34 +0000

Please check out some T-Max processing research by William Bascom and Chris Johnson at the following site:

http://www2.ari.net/glsmyth/

To summarise:

1. D-76 used 1+1 at 68 F was the best developer tested with T-Max films.
2. D-76 stock solution should not be kept for more than 4 weeks or inaccuracies arise.
3. Very good agitation and careful dilutions/times must be used throughout
(eg Jobo ATL-2?).
4. Beyond N+1 T-Max developer diluted 1+4 (24 C?) is best.
5. Advantages with Tmax are improved reciprocity effects during long exposures (eg of night scenes) .... Tmax has its benefits!!!!

2-BATH FORMULA FOR TMAX100 FILM
Also, to repeat a two-bath method for T-Max that I saw recently:
The following formula was given by Joe Englander in Ag+, Vol.9 (now published by BJP):

A
Water (52 C)................ 750 ml.
Metol .......................... 10 g.
Sodium sulphite .............75 g.
Cold water to make ...........1 L.

B
Water (20 C) ................750 ml.
Sodium sulphite ................5 g.
Sodium carbonate ............15 g.
Water to make ..................1 L.

DEV SEQUENCE:
3 mins dev in part A
no rinse
3 mins in part B
(Jobo @ 50 rpm with same times)
water rinse
fresh fixer
wash normally

The initial ISO is a true 100 ISO.
Results: overall contrast is normal (NOT flat as with many A/B systems) yet mid range contrast gives good separation. Highlights are smooth/full range. Good A/B-style shadows. Could be useful for alt Proc.

Good luck with your Research, please keep me informed,

Michael Taylor (michael.photography@btinternet.com)