Development time
Harman Technology Kentmere Pan 200 in Perceptol
13:00 at 20°C, stock dilution, box speed.
Start timer · 13:00Time
13:00
Standard
Dilution
Stock
Temperature
20°C
Box speed
ISO 200
B&W
Development time
| Dilution | EI | Time | Temp | Agitation | Timer |
|---|---|---|---|---|---|
| Stock | 200 | 13:00 | 20°C / 68°F | Standard | Start timer |
EI is the speed the film was rated at when shooting. Times marked “not yet verified” come from secondary sources and haven’t been checked against a manufacturer datasheet.
Other temperatures
| 18°C | 19°C | 20°C | 21°C | 22°C | 23°C | 24°C |
|---|---|---|---|---|---|---|
| 16:15 | 14:34 | 13:00 | 11:42 | 10:24 | 9:22 | 8:27 |
Calculated from the 20°C time using Ilford’s temperature compensation factors, not taken from a datasheet. Most B&W developers behave well between 18°C and 24°C.
Mixing
| Dilution | 300 ml (one 35mm roll) | 500 ml (one 120 roll) |
|---|---|---|
| Stock | Use as mixed, undiluted | Use as mixed, undiluted |
How they work together
- Perceptol
- Moderate acutance, normal contrast. Extremely fine grain, optimised for enlargement.
- Harman Technology Kentmere Pan 200
- New 2025 release filling the gap between Kentmere 100 and 400. Clear low-density base for efficient scanning.
Kentmere Pan 200 in other developers
Other films in Perceptol
Ilford FP4 Plus
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Stock · EI 125 · 20°C · 3 variants
Harman Technology Kentmere Pan 100
12:30
Stock · EI 100 · 20°C
Ilford Ilford Delta 100
15:00
Stock · EI 100 · 20°C · 3 variants
Ilford Pan F Plus 50
14:00
Stock · EI 50 · 20°C · 3 variants
Ilford Ortho Plus
13:00
Stock · EI 80 · 20°C
Ilford SFX 200
14:30
Stock · EI 200 · 20°C
Rollei/Maco Retro 80S
12:00
1+1 · EI 80 · 20°C