ILFORD ILFOTEC DD-x is a fine grain developer which gives full or increased film speed. Correctly exposed negatives developed in ILFOTEC DD-x have a full range of tones, with depth in the shadows, a smooth transition through the mid-tones and bright, detailed highlights. ILFOTEC DD-x is designed to complement the features of ILFORD films, especially the range of ILFORD DELTA PROFESSIONAL films. In particular, it is recommended for use with DELTA 3200 PROFESSIONAL film, as well as other black and white films from other manufacturers. Ideal for both manual and machine processing of film. Where continuous agitation is used in rotary processors without a pre-rinse, reduce the spiral tank development times by up to 15%. A pre-rinse is not recommended as it can lead to uneven processing. For Push processing development times are given for a range of meter settings are given in there development table. Dilution 1+4 with water before use ILFOTEC DD-x is supplied as a liquid for one-shot use and is available in 1 litre bottles of concentrate.