Development time
Kodak Portra 800 in Bellini C-41 Monopart Kit
3:15 at 38°C (100°F), stock dilution, box speed.
Start timer · 3:15- Time
- 3:15
- Dilution
- Stock
- Temperature
- 38°C
- Box speed
- ISO 800
Development time
| Dilution | EI | Time | Temp | Agitation | Evidence | Timer |
|---|---|---|---|---|---|---|
| Stock | 800 | 3:15 | 38°C / 100°F | Continuous 15s, then every 30s | 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°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.
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
- Kodak Portra 800
- Kodak (E-4040, Jan 2025) describes well balanced colour saturation, very fine grain and best-in-class underexposure latitude, for long lenses and low light. 135 and 120 only.
- Notes on this pairing
- Kit time; applies to any C-41 film. Developer at 38.0 ±0.2 °C for films 1 to 4; 3:30 for 5 to 8, 3:45 for 9 to 12, 4:00 for 13 to 16.
Portra 800 in other developers
Other films in Bellini C-41 Monopart Kit
Kodak Portra 400
3:15
Stock · EI 400 · 38°C
Kodak Gold 200
3:15
Stock · EI 200 · 38°C
Kodak Ultramax 400
3:15
Stock · EI 400 · 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