Rollei Infrared 400 is a panchromatic black and white negative film with a unique infrared sensitivity of ISO 400/27° without filtration. It allows for halation effects and varying exposure lengths in the 650-750nm IR wavelength range. This versatile film can be used in both daylight and tungsten conditions, boasting fine grain, sharpness, and high resolving power. The film's polyester base features anti-curling and anti-static coatings, as well as a special coating for smooth camera transport. With an archival rating of LE-500 and a clear base ideal for scanning, this film is a top choice for photographers.