Rollei / Maco (Allemagne)
Rollei Ortho 25 Plus
ISO 25 N&B fine all levels
~10–12 €
A technical orthochromatic film, ISO 25, sensitive only from 380–610nm — insensitive to red. Can be handled under a red safelight like photo paper. Extremely fine grain, maximum resolution. Polyester LE-500 base (500-year archival life). Developable as a reversal.
Atouts
+ Can be handled under a red safelight
+ Extremely fine grain
+ LE-500 base — 500-year archival longevity
+ Developable as a reversal
+ A unique silent-film aesthetic
Limites
− ISO 25 — demanding in low light
− Insensitive to red — dark skin tones
− Technical, niche use
Orthochromatic = very dark lips and skin tones, a look reminiscent of 1920s silent films. It can be loaded and developed under red safelight illumination — a unique property in 35mm.
Caractéristiques techniques
Grain
fine
Contraste
medium
Popularité
common
Format 120
Non disponible
Nombre de poses
36 poses
Base du film
Polyester
Sensibilité spectrale
Orthochromatic
Conservation
refrigeration recommended
Péremption typique
2–5 years depending on storage
Développement maison
yes — easy (D-76, Rodinal, etc.)
Niveau recommandé
all levels
| Process | N&B standard |
| Révélateurs | D-76 (1:1), Rodinal (1:25–1:50), HC-110 (dil. B), ID-11, Ilfosol 3, Microphen |
| Temps / température | 20°C — Variable selon révélateur et ISO. Consulter Massive Dev Chart (digitaltruth.com) |
| Usage recommandé | portrait, street, landscape |
| Revendeurs France | Labo-Argentique.com · Nation Photo · Analog Wonderland · Panajou |
