Development time
Fujifilm Fujifilm 400 in Unicolor C-41
3:30 at 38.9°C (102°F), stock dilution, box speed.
Start timer · 3:30- Time
- 3:30
- Dilution
- Stock
- Temperature
- 38.9°C
- Box speed
- ISO 400
Development time
| Dilution | EI | Time | Temp | Agitation | Evidence | Timer |
|---|---|---|---|---|---|---|
| Stock | 400 | 3:30 | 38.9°C / 102°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
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”.
Other temperatures
Colour developers run at 38.9°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.
Mixing
| Dilution | 300 ml (10.1 fl oz) (one 35mm roll) | 500 ml (16.9 fl oz) (one 120 roll) |
|---|---|---|
| Stock | Use as mixed, undiluted | Use as mixed, undiluted |
How they work together
- Fujifilm Fujifilm 400
- Fujifilm-branded ISO 400 'all conditions' consumer film, 35mm only, made for Fujifilm by Eastman Kodak and introduced in North America in spring 2023 as the Superia X-TRA 400 replacement.
- Notes on this pairing
- Kit time; applies to any C-41 film. Developer step, hand tank at 102 °F: continuous for 10 s, then 4 inversions every 30 s.
Fujifilm 400 in other developers
Other films in Unicolor C-41
Kodak Portra 400
3:30
Stock · EI 400 · 38.9°C · 9 variants
Kodak Portra 800
3:30
Stock · EI 800 · 38.9°C
Kodak Gold 200
3:30
Stock · EI 200 · 38.9°C
Kodak Ultramax 400
3:30
Stock · EI 400 · 38.9°C
CineStill CineStill 800T
3:30
Stock · EI 800 · 38.9°C
Lomography Lomography Color Negative 800
3:30
Stock · EI 800 · 38.9°C
Lomography Lomography Color Negative 400
3:30
Stock · EI 400 · 38.9°C
Kodak Ektar 100
3:30
Stock · EI 100 · 38.9°C