Kodak T-Max 100 in T-Max Developer

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).

T-Max Developer

High acutance, full film speed, normal contrast. Enhanced shadow detail in normally processed and push-processed film.

Kodak T-Max 100

Kodak describes it as a medium-speed (ISO 100/21) panchromatic film with extremely high sharpness, extremely fine grain and very high resolving power, good for detailed subjects and copying (F-4016, June 2018). Kodak calls it the world's finest-grain 100-speed black-and-white film.

Notes on this pairing

• Small tank, agitation every 30 s. T-MAX Developer 1+4 (Kodak's standard dilution); Kodak says not recommended at 18 °C.
• Small tank, agitation every 30 s. Kodak gives 1+7 at 24 °C only; dilute T-MAX gives slightly higher speed and more grain.
• Small tank, agitation every 30 s. Kodak gives 1+9 at 24 °C only and does not recommend more dilute solutions.
• One-stop push. Small tank, agitation every 30 s. T-MAX Developer 1+4.
• Two-stop push. Small tank, agitation every 30 s. T-MAX Developer 1+4.
• Three-stop push. Small tank, agitation every 30 s. T-MAX Developer 1+4; F-4016 gives this push at 24 °C only.

• 510-Pyro

  8:50

  1+100 · EI 100 · 21°C · 2 variants

• D-76

  6:30

  Stock · EI 100 · 20°C · 12 variants

• Diafine

  6:00

  Stock · EI 160 · 20°C · 3 variants

• HC-110

  6:00

  1+31 · EI 100 · 20°C · 7 variants

• PMK Pyro

  12:00

  1+2+100 · EI 100 · 21.1°C · 2 variants

• XTOL

  7:30

  Stock · EI 100 · 20°C · 22 variants

• Kodak Tri-X 400

  6:00

  1+4 · EI 400 · 20°C · 7 variants

• Kodak T-Max 400

  6:45

  1+4 · EI 400 · 20°C · 16 variants

• Ilford HP5 Plus

  6:30

  1+4 · EI 400 · 20°C · 4 variants

• Ilford Delta 400

  6:30

  1+4 · EI 400 · 20°C · 6 variants

• Ilford FP4 Plus

  8:00

  1+4 · EI 125 · 20°C · 2 variants

• Foma Bohemia Fomapan 400 Action

  7:00

  1+4 · EI 400 · 20°C

• Ilford Ilford Delta 100

  7:00

  1+4 · EI 100 · 20°C · 3 variants

• Kodak T-Max P3200

  12:00

  1+4 · EI 3200 · 20°C · 15 variants

All 24 films in T-Max Developer