Rollei Ortho 25 Plus - 120

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  (e.g. street photography, landscape photography, portraits. The most suitable developers are low contrast developers, which bend the gradation so that, among other things, the tonal richness increases (more gray values)). The almost clear RC base opens up the possibility of using the film as a B&W slide film.

Specifications

• New Film Stock.
• Package Contains: 1 Roll.
• Brand: Rollei.
• Film Format: 120 Film.
• Film type: Black and White Film.
• ISO: 25.
• Exposures: 6x4.5: 16 frames, 6x6: 12 frames, 6x7: 10 frames, 6x9: 8 frames.
• Grain: Extremely Fine Grain.
• Contrast: Average.
• Sharpness: Very High.
• Development Method: Rollei Supergrain, Ilford ID-11, Rodinal, D-76.

If you are looking for Rollei Ortho 25 in 35mm, you can find them here.