FILM Ferrania Orto in Rodinal

EI is the speed the film was rated at when shooting. Evidence says where each time comes from: the manufacturer’s own data, a named test, a compilation or several agreeing reports (community consensus), or one person’s report. Times marked “not yet verified” come from secondary sources and haven’t been checked against a manufacturer datasheet. Where sources give different times, every one is listed and marked “sources differ”.

Calculated from the 20°C (68°F) time using Ilford’s temperature compensation factors, not taken from a datasheet. Most B&W developers behave well between 18–24°C (64–75°F).

Rodinal

Prominent grain, high acutance, full film speed, variable contrast. Sharp, dramatic, distinct edge effects.

FILM Ferrania Orto

Orthochromatic version of the P30 cine-derived emulsion (2023), with high silver content and strong contrast; development close to P30.

Notes on this pairing

• No pre-wet. First 30 s two inversions every 5 s, then four inversions (10 s) each minute. User-feedback guide. Ferrania publishes these as times collected from user feedback, not its own tests.

• 510-Pyro

  60:00

  1+500 · EI 50 · 21°C

• D-76

  8:00

  Stock · EI 50 · 20°C · 2 variants

• Diafine

  6:00

  Stock · EI 50 · 21°C

• HC-110

  30:00

  1+119 · EI 50 · 20°C

• Kodak Tri-X 400

  7:00

  1+25 · EI 400 · 20°C · 3 variants

• Ilford HP5 Plus

  6:00

  1+25 · EI 400 · 20°C · 4 variants

• Ilford Delta 400

  9:00

  1+25 · EI 400 · 20°C · 4 variants

• Ilford FP4 Plus

  9:00

  1+25 · EI 125 · 20°C · 4 variants

• Foma Bohemia Fomapan 400 Action

  5:30

  1+25 · EI 400 · 20°C · 5 variants

• Harman Technology Kentmere Pan 400

  17:00

  1+25 · EI 400 · 20°C · 3 variants

• Ilford Ilford Delta 100

  9:00

  1+25 · EI 100 · 20°C · 4 variants

• Kodak Double-X 5222

  5:45

  1+25 · EI 250 · 20°C · 3 variants

All 32 films in Rodinal