The Foma Fomatol LQN (250 ml) is a highly-durable, liquid concentrate black and white paper developer for both manual tray and machine processing. Manual processing dilution is 1:7, while machine processing dilution is 1:4. The quantity of 4.2 cups (1 liter) of ready-to-use solution (dilution 1:7) is enough to develop 16.1 sq ft / 1.5 sq. m (30 8.0 x 10" / 20.3 x 25.4 cm prints) of photo paper on baryta and 32.3 sq ft / 3.0 sq m (58 8.0 x 10" / 20.3 x 25.4 cm prints) of photo paper on resin-coated paper base (RC). The recommended replenishment rate for automatic processing is 0.8 cups (200 ml) of ready-to-use developer (dilution 1:4) per 10.8 sq ft (1 sq m) of photo paper. The developing time at 68° F (20° C) is 90 - 120 sec (1.5 - 2.0 min) for fiber-base paper, 60 - 90 sec (1.0 - 1.5 min) for resin-coated paper and 60 - 180 sec (1.0 - 3.0 min) for warmtone RC and fiber paper This developer is similar to the Kodak Polymax T Developer.