SFX Factsheet (Englisch)
Film with extended red sensitivity up to 780 nm (Infrared). Ilford's SFX is not a "real" infrared film like the efke IR820 or the Kodak HIE; it is a film with an extended red sensitivity. The benefit to the user is the better usability and easier processing. The downside is that the photos are not "true" infrared images, but photos with an infrared-like effect. However, the film can be given to almost any photo lab for developing and the exposures can be made using just a dark red filter, rather than an opaque IR filter. Filters over 750 nm can not always be successfully used with this film. This is ideal for infrared-beginners of to try out IR film in a Holga camera.