Development time
Kodak Ektar 100 in Compard Digibase C-41
3:15 at 37.8°C (100°F), stock dilution, box speed.
Start timer · 3:15- Time
- 3:15
- Dilution
- Stock
- Temperature
- 37.8°C
- Box speed
- ISO 100
Development time
| Dilution | EI | Time | Temp | Agitation | Evidence | Timer |
|---|---|---|---|---|---|---|
| Stock | 100 | 3:15 | 37.8°C / 100°F | Standard | Community consensusChecked 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 37.8°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 Ektar 100
- Kodak (E-4046, 2016) calls it the world's finest-grain colour negative film, with high saturation and ultra-vivid colour, aimed at nature, travel, fashion and product work. Kodak recommends it for commercial photographers and advanced amateurs.
- Notes on this pairing
- Kit time; applies to any C-41 film. Colour developer at 37.8 ±0.3 °C; agitate for the first 15 s, then once every 30 s. Compard says its times come from user experience (ohne Gewähr).
Ektar 100 in other developers
Adox C-TEC 41
3:15
Stock · EI 100 · 38°C
Bellini C-41 Monopart Kit
3:15
Stock · EI 100 · 38°C
CineStill Cs41 Color Simplified Kit
3:30
Stock · EI 100 · 39°C
Flic Film C-41 Eco Kit
3:30
Stock · EI 100 · 39°C
Fuji Hunt C-41 Film X-Press Kit
3:15
Stock · EI 100 · 38°C
Jobo C-41 Color Negative Developer Kit
3:15
Stock · EI 100 · 38°C
Kodak Color Negative C-41 Kit
3:15
Stock · EI 100 · 38°C
Tetenal Colortec C-41
3:15
Stock · EI 100 · 38°C
Other films in Compard Digibase C-41
Kodak Portra 400
21:00
Stock · EI 400 · 20°C · 4 variants
Kodak Portra 800
3:15
Stock · EI 800 · 37.8°C
Kodak Gold 200
3:15
Stock · EI 200 · 37.8°C
Kodak Ultramax 400
3:15
Stock · EI 400 · 37.8°C
Fujifilm Fujifilm 400
3:15
Stock · EI 400 · 37.8°C
CineStill CineStill 800T
3:15
Stock · EI 800 · 37.8°C
Lomography Lomography Color Negative 800
3:15
Stock · EI 800 · 37.8°C
Lomography Lomography Color Negative 400
3:15
Stock · EI 400 · 37.8°C