Updated version of the Rollei Ortho 25
The Rollei Ortho 25 is a monochrome photographic film with a nominal sensitivity of ISO 25. The Rollei Ortho 25 is characterized by a high sensitivity reserve of up to two f-stops, depending upon development. The document emulsion offers offers an extraordinary sharpness and extremely fine grain. The Rollei Ortho 25 is suitable for technical-scientific applications and as a half-tone film in the pictorial photography. The highly clear transparent PET substrate opens the possibility of processing as black and white slide film also.