Kodak Ultramax 400 in Adox C-TEC 41

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”.

Colour developers run at 38°C (100°F) with a tight tolerance of around ±0.3°C, so there’s no reliable temperature chart. If you can’t hold the temperature, follow your kit’s instructions for its lower-temperature times.

Kodak Ultramax 400

Kodak's consumer high-speed colour negative (ISO 400/27), designed for snapshooters: bright, vibrant colours with accurate skin tones, fine grain and good sharpness when enlarged (Kodak E-7023). 135 only.

Notes on this pairing

• Kit time; applies to any C-41 film. Colour developer step at 38 °C; tank agitated for the first 30 s, then one gentle tilt every 15 s (or continuous rotation). First 4 films per litre; then 3:30, 3:45, 4:00.

• Bellini C-41 Monopart Kit

  3:15

  Stock · EI 400 · 38°C

• CineStill Cs41 Color Simplified Kit

  3:30

  Stock · EI 400 · 39°C

• Compard Digibase C-41

  3:15

  Stock · EI 400 · 37.8°C

• Flic Film C-41 Eco Kit

  3:30

  Stock · EI 400 · 39°C

• Tetenal Colortec C-41

  3:15

  Stock · EI 400 · 38°C

• Unicolor C-41

  3:30

  Stock · EI 400 · 38.9°C

• Kodak Portra 400

  3:15

  Stock · EI 400 · 38°C · 4 variants

• Kodak Portra 800

  3:15

  Stock · EI 800 · 38°C

• Kodak Gold 200

  3:15

  Stock · EI 200 · 38°C

• Fujifilm Fujifilm 400

  3:15

  Stock · EI 400 · 38°C

• CineStill CineStill 800T

  3:15

  Stock · EI 800 · 38°C

• Lomography Lomography Color Negative 800

  3:15

  Stock · EI 800 · 38°C

• Lomography Lomography Color Negative 400

  3:15

  Stock · EI 400 · 38°C

• Kodak Ektar 100

  3:15

  Stock · EI 100 · 38°C

All 14 films in Adox C-TEC 41