ILFORD DELTA 400 PROFESSIONAL is a high speed, black & white film designed to produce images with extraordinary depth and detail.Created using our latest Core-shell™ emulsion technology, DELTA 400 produces images with exceptional sharpness and the finest of grain to offer a leading combination of speed vs sharpness along with impressive tonal range.This highly versatile film delivers outstanding results over a broad exposure range of ISO 200 - ISO 1600 while its ISO 400 rating allows the use of faster shutter speeds yet with the comparable quality of medium speed films.DELTA 400 can be processed in a wide range of different developers using spiral tanks, deep tanks and automatic processors.