Kodak Portra 400 in CineStill Cs41 Color Simplified Kit

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 39°C (102°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 Portra 400

Kodak calls it the world's finest-grain high-speed colour negative film, at true ISO 400 with natural skin tones and wide-ranging lighting performance (Kodak E-4050, Jan 2025). Made with Kodak's T-Grain emulsions; sold in 135, 120 and sheets.

Notes on this pairing

• Kit time; applies to any C-41 film. Developer at 102 °F (39 °C): continuous for 10 s, then 4 inversions every 30 s. Add 1 °C if not using a water bath.
• Kit time; applies to any C-41 film. CineStill variable-temperature chart; agitation continuous for the first 10 s, then 4 inversions every 30 s. Lower temperatures give lower contrast and colour separation.
• Kit time; applies to any C-41 film. CineStill variable-temperature chart; agitation continuous for the first 30 s, then 4 inversions every minute. Lower temperatures give lower contrast and colour separation.
• Kit time; applies to any C-41 film. CineStill variable-temperature chart; agitation continuous for the first minute, then 4 inversions every 2 min. Lower temperatures give lower contrast and colour separation.
• Kit time; applies to any C-41 film. Push +1: CineStill gives 4.55 min (3.5 min x 1.30) at 39 °C.
• Kit time; applies to any C-41 film. Push +2: CineStill gives 6.13 min (3.5 min x 1.75) at 39 °C.
• Kit time; applies to any C-41 film. Push +3: CineStill gives 8.75 min (3.5 min x 2.50) at 39 °C.
• Kit time; applies to any C-41 film. Pull -1: CineStill gives 2.75 min at 39 °C.

• Adox C-TEC 41

  3:15

  Stock · EI 400 · 38°C · 4 variants

• Bellini C-41 Monopart Kit

  3:15

  Stock · EI 400 · 38°C

• Compard Digibase C-41

  21:00

  Stock · EI 400 · 20°C · 4 variants

• Flic Film C-41 Eco Kit

  3:30

  Stock · EI 400 · 39°C · 2 variants

• Fuji Hunt C-41 Film X-Press Kit

  3:15

  Stock · EI 400 · 38°C

• Jobo C-41 Color Negative Developer Kit

  3:15

  Stock · EI 400 · 38°C

• Kodak Color Negative C-41 Kit

  3:15

  Stock · EI 400 · 38°C

• Tetenal Colortec C-41

  3:15

  Stock · EI 400 · 38°C · 5 variants

All 10 developers for Portra 400

• Kodak Portra 800

  3:30

  Stock · EI 800 · 39°C

• Kodak Gold 200

  3:30

  Stock · EI 200 · 39°C

• Kodak Ultramax 400

  3:30

  Stock · EI 400 · 39°C

• Fujifilm Fujifilm 400

  3:30

  Stock · EI 400 · 39°C

• CineStill CineStill 800T

  3:30

  Stock · EI 800 · 39°C

• Lomography Lomography Color Negative 800

  3:30

  Stock · EI 800 · 39°C

• Lomography Lomography Color Negative 400

  3:30

  Stock · EI 400 · 39°C

• Kodak Ektar 100

  3:30

  Stock · EI 100 · 39°C

All 14 films in CineStill Cs41 Color Simplified Kit