ReraPan 400 Black and White Negative Film is a high-speed panchromatic black and white negative film with a fine grain structure plus a high degree of sharpness and edge detail. It has a nominal sensitivity of ISO 400/27° along with a wide exposure latitude. This film is designed for use in 127 cameras with masks for 4 x 6.5 cm and 4 x 4 cm frame sizes.