FILM Ferrania Orto in 510-Pyro

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 21°C (70°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).

510-Pyro

Very-high acutance, full film speed, compensating contrast. Exceptional highlight control with subtle staining.

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

• 5 min pre-wet, agitate the first minute, then stand. Usable EI 6 to 64. User-feedback guide. Ferrania publishes these as times collected from user feedback, not its own tests.

• 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

• Rodinal

  14:00

  1+50 · EI 50 · 20°C

• Kodak Tri-X 400

  16:25

  1+100 · EI 400 · 20°C · 4 variants

• Kodak T-Max 400

  30:45

  1+100 · EI 400 · 20°C · 2 variants

• Ilford HP5 Plus

  9:00

  1+100 · EI 400 · 20°C · 2 variants

• Ilford Delta 400

  22:00

  1+100 · EI 400 · 20°C · 2 variants

• Ilford FP4 Plus

  20:25

  1+100 · EI 125 · 20°C · 2 variants

• Harman Technology Kentmere Pan 400

  20:30

  1+100 · EI 400 · 20°C · 3 variants

• Ilford Ilford Delta 100

  14:30

  1+100 · EI 100 · 20°C · 2 variants

• Kodak T-Max 100

  8:50

  1+100 · EI 100 · 21°C · 2 variants

All 11 films in 510-Pyro