Development time
Fujifilm Neopan 1600 Professional in XTOL
5:45 at 20°C (68°F), stock dilution, box speed.
Start timer · 5:45- Time
- 5:45
- Dilution
- Stock
- Temperature
- 20°C
- Box speed
- ISO 1600
All 10 times
| Dilution | EI | Time | Temp | Agitation | Evidence | Timer |
|---|---|---|---|---|---|---|
| Stock | 1600 | 5:45 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| Stock | 1600 | 5:00 | 21°C / 70°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| Stock | 1600 | 4:00 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+1 | 1600 | 7:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+1 | 1600 | 7:00 | 21°C / 70°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+1 | 1600 | 5:45 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| Stock | 3200+1 stop | 6:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+1 | 3200+1 stop | 8:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| Stock | 6400+2 stops | 7:15 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+1 | 6400+2 stops | 9:45 | 20°C / 68°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
| 18°C64°F | 19°C66°F | 20°C68°F | 21°C70°F | 22°C72°F | 23°C73°F | 24°C75°F |
|---|---|---|---|---|---|---|
| 7:11 | 6:26 | 5:45 | 5:11 | 4:36 | 4:08 | 3:44 |
Calculated from the 20°C (68°F) time using Ilford’s temperature compensation factors, not taken from a datasheet. Most B&W developers behave well between 18–24°C (64–75°F).
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 |
| 1+1 | 150 ml developer + 150 ml water | 250 ml developer + 250 ml water |
How they work together
- XTOL
- Fine grain, high acutance, full film speed, normal contrast. Excellent shadow detail with wide latitude.
- Fujifilm Neopan 1600 Professional
- High-speed B&W film rated EI 1600 for sport and low light (Super Presto in Japan).
- Notes on this pairing
- Kodak J-109, small tank, agitation every 30 s.
- Kodak J-109, small tank, agitation every 30 s. Kodak warns tank times under 5 min may give uneven development.
- One-stop push. Kodak J-109, small tank, agitation every 30 s.
- Two-stop push. Kodak J-109, small tank, agitation every 30 s.
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