Medium Speed Black and White Negative Film, Finest Grain Quality ISO 100 Black-and-White Film, Ideal Choice for a Wide Range of Photographic Applications. Neopan 100 Acros is Fujifilm"s professional newest addition to its black-and-white family of films. Neopan 100 Acros is medium speed, ultra-high-image quality black-and-white negative film and featuring the world"s highest standard in grain quality among ISO 100 films.