Film · Black and white negative
Ilford FP4 Plus
Often considered a benchmark for medium speed B&W. Notable sharpness and fine grain. Well-suited for high-quality enlargements.
- Box speed
- ISO 125
- Process
- BW
- Formats
- 35mm, 120, 4x5, 8x10
- Grain
- Fine
- Latitude
- Good
- Reciprocity
- t^1.26
Characteristics
Reciprocity failure
Compensation Formula
t' = t1.26
Ilford's published factor P = 1.26: corrected time = metered time ^ 1.26. Ilford says one second or less needs no compensation, and that very long exposures at low light may need some trial and error.
Development times
| Developer | Dilution | ISO | Time | Temp |
|---|---|---|---|---|
| ID-11 | stock | 125 | 8m 30s | 20°C / 68°F |
| ID-11 | 1+1 | 125 | 11m | 20°C / 68°F |
| Perceptol | stock | 125 | 12m | 20°C / 68°F |
| Ilfotec DD-X | 1+4 | 125 | 10m | 20°C / 68°F |
| ID-11 | 1+3 | 125 | 20m | 20°C / 68°F |
| Rodinal | 1+25 | 125 | 9m | 20°C / 68°F |
| Rodinal | 1+50 | 125 | 15m | 20°C / 68°F |
| Perceptol | 1+1 | 125 | 15m | 20°C / 68°F |
| Perceptol | 1+3 | 125 | 21m | 20°C / 68°F |
| ID-11 | stock | 200 | 10m | 20°C / 68°F |
Showing 10 of 69 entries. Temperatures, mixing and push times for every developer →
Often used for
Help improve this page. Some information for this film is limited. If you have experience shooting FP4 Plus or know of published data we're missing, we'd love to hear from you.
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