This is the exact same formulation as Efke IR820 except that it does not have an anti-halation backing. The absence of an anti-halation is critical to achieve the "blooming" effect reminiscent of Kodak HIE Infrared film.

Because this film does not have an anti-halation backing the film must be loaded in to the camera in very subdued light or total darkness or your first few exposures will be fogged!

When used with filters that are deep to opaque red it is effective in creating scenes where foliage and clouds are pure-white, while water and blue sky is coal black. Warm skin tones and lips will appear white.

Note: Testing of this brand new emulsion has shown that best results are obtained by exposing the film at ISO 25 and using an infrared filter such as a Hoya R72, Tiffen #87 or B+W 092. (Standard Red 25A filters are not recommended).