1 Gallon Of Kodak D-76 Developer Powder For B W Film. For general-purpose use with films such as Kodak T-MAX Professional, PLUS-X Pan, and TRI-X Pan Films; also for some spectroscopic films and plates. A favorite of pictorial photographers.Yields full emulsion speed and maximum shadow detail with normal contrast. Moderately fine grain, excellent development latitude.For use in: small and large tanks, trays, rotary-tubes, rack-and-tanks Keeping Properties:Stock solution (full strength ) in closed container (full) - 6 months; 2 months in a half full container Working solution (full strength) in a tray-24 hours (or tank-1 month) Diluted 1:1 solution-24 hours in a tray (N/A for a tank) Useful Capacity (unreplenished):Full strength in a tray; 16-8x10 sheets per gal (4 per L) Full strength in a tank; 16-8x10 sheets per gal (4 per L); useful capacity can be increased by replenishmentDiluted 1:1 in a tray; 8-8x10 sheets per gal in a tray (2 per L) Diluted 1:1 in a tank; 8-8x10 sheets per gal in a tank (2 per L) D-76 provides full emulsion speed and excellent shadow detail with normal contrast, and produces fine grain. One gallon mix is in powder form and must be mixed with water before use. You'll find it an excellent choice for almost any general photo application.