This is a 25 sheet box of Ilford HP5 PLUS 4x5" Black & White Print Film. It is a high speed, ISO 400 B&W film that is pushable to 3200. The film produces fine grain and sharp images under a wide variety of lighting scenarios. It is generally used for action, press, and general purpose photography. HP5 PLUS is compatible with all major processing systems, including those which support standard short fixing and washing times.