Ilford Developer Ilfotec DD 5L - ILFORD ILFOTEC DD is a replenishable developer suitable for most black & white films. With long tank life and good resistance to contamination, ILFOTEC DD reliably produces superb quality negatives under a wide range of conditions. It has been specifically designed for large quantity film processing systems such as replenished dip and dunk (hanger) processing although it can also be used in deep tanks and continuous long leader processors with some adjustments to development times and operating temperatures. We recommend that it is used in conjunction with ILFOTEC DD STARTER for machine processing. For recommended processing times please refer to the technical data sheet.