Development time
Kodak T-Max P3200 in T-Max Developer
12:00 at 20°C (68°F), 1+4 dilution, box speed.
Start timer · 12:00- Time
- 12:00
- Dilution
- 1+4
- Temperature
- 20°C
- Box speed
- ISO 3200
All 15 times
| Dilution | EI | Time | Temp | Agitation | Evidence | Timer |
|---|---|---|---|---|---|---|
| 1+4 | 400−3 stops | 8:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 800−2 stops | 9:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 1600−1 stop | 10:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 3200 | 12:00 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 6400+1 stop | 13:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 12500+2 stops | 15:30 | 20°C / 68°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 400−3 stops | 6:30 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 800−2 stops | 7:30 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 1600−1 stop | 8:00 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 3200 | 9:30 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 6400+1 stop | 11:00 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 12500+2 stops | 12:00 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+4 | 25000+3 stops | 13:30 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+7 | 800−2 stops | 13:00 | 24°C / 75°F | Standard | ManufacturerChecked Oct 2026 | Start timer |
| 1+9 | 800−2 stops | 19:30 | 24°C / 75°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 |
|---|---|---|---|---|---|---|
| 15:00 | 13:26 | 12:00 | 10:48 | 9:36 | 8:38 | 7:48 |
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) |
|---|---|---|
| 1+4 | 60 ml developer + 240 ml water | 100 ml developer + 400 ml water |
| 1+7 | 38 ml developer + 262 ml water | 63 ml developer + 437 ml water |
| 1+9 | 30 ml developer + 270 ml water | 50 ml developer + 450 ml water |
How they work together
- T-Max Developer
- High acutance, full film speed, normal contrast. Enhanced shadow detail in normally processed and push-processed film.
- Kodak T-Max P3200
- Multi-speed continuous-tone film designed for push processing to EI 3200-6400. Well-suited for low-light and action photography.
- Notes on this pairing
- Small tank, agitation every 30 s (F-4001, Apr 2019). T-MAX Developer 1+4. EI 25,000 not recommended at 20 °C.
- Small tank, agitation every 30 s (F-4001, Apr 2019). T-MAX Developer 1+4.
- Small tank, agitation every 30 s (F-4001, Apr 2019). Kodak gives 1+7 at EI 800, 24 °C only.
- Small tank, agitation every 30 s (F-4001, Apr 2019). Kodak gives 1+9 at EI 800, 24 °C only.
T-Max P3200 in other developers
Other films in T-Max Developer
Kodak Tri-X 400
6:00
1+4 · EI 400 · 20°C · 7 variants
Kodak T-Max 400
6:45
1+4 · EI 400 · 20°C · 16 variants
Ilford HP5 Plus
6:30
1+4 · EI 400 · 20°C · 4 variants
Ilford Delta 400
6:30
1+4 · EI 400 · 20°C · 6 variants
Ilford FP4 Plus
8:00
1+4 · EI 125 · 20°C · 2 variants
Foma Bohemia Fomapan 400 Action
7:00
1+4 · EI 400 · 20°C
Ilford Ilford Delta 100
7:00
1+4 · EI 100 · 20°C · 3 variants
Kodak T-Max 100
7:30
1+4 · EI 100 · 20°C · 10 variants