Ilford 400 Delta Professional is a fast, fine grain black and white film, ideal for pictorial and fine art photography. Prints made from 400 Delta Professional film exposed at ISO 400/2 7 have very fine grain and outstanding sharpness. A ISO 400 high speed film giving images with extraordinary depth and dimension, DELTA 400 PROFESSIONAL provides an almost unrivalled combination of speed and sharpness with a width of tonal range that retains subtlety and detail. The liberating speed of DELTA 400 PROFESSIONAL allows fast action to be frozen, great depth of field, excellent results in low lighting conditions, the freedom of a handheld camera, and the fine grain and level of detail normally associated with ISO 100.
The superb image qualify of 400 Delta Professional means that it is possible to use this film in situations that would usually require a medium speed film. Its ISO 400/27 speed rating, however, allows the use of higher shutter speeds or greater depth of field than with a medium speed film while giving similar qualify results. Additionally, the speed of 400 Delta Professional ensures excellent results in low lighting conditions.
Ilford 400 Delta Professional, though, is more than an ISO 400/27 film. Its exposure latitude allows good quality results to be obtained over the exposure range ISO 200/24 to ISO 1600/33.