Process: Rollei Supergrain, Rodinal, D-76, HC110, etc.
Remarks: Rollei Ortho 25 is a technical, orthochromatic black and white photographic film with a nominal sensitivity of ISO 25/15 °. Rollei ORTHO 25 is characterized by a high sensitivity reserve of up to two f-stops, depending upon development. The document emulsion offers exceptionally fine grain images with high sharpness. Rollei ORTHO 25 is ideal for technical and scientific applications and as a half-tone film for pictorial photography. The crystal-clear RC base opens up the possibility of using the film as a B&W slide film.