XP is a chromogenic black-and-white film from Ilford Photo.
[1] It was launched to great acclaim at photokina in September 1980, and went on sale in January, 1981.
As of 2020, Ilford XP2 Super is the only black & white film on the market that can be developed using the C-41 process.
As a chromogenic film, XP2 can scan well because it avoids the limitations of Digital ICE, plus it has a similar exposure latitude to color negative film, so it can be exposed with an exposure index from ISO 50/18° to 800/30° on a single roll and be developed in traditional C-41 processing.
In 2013, Ilford introduced a version of their black-and-white single-use camera which includes 27 exposures of XP2 Super film.