Film · Black and white negative
Ilford SFX 200
Extended red sensitivity up to 740nm. Creates infrared-style effects with 720nm filter. Not true IR film but produces similar aesthetic.
- Box speed
- ISO 200
- Process
- BW
- Formats
- 35mm, 120
- Grain
- Medium
- Latitude
- Good
- Reciprocity
- t^1.43
Characteristics
Reciprocity failure
Compensation Formula
t' = t1.43
Ilford's published factor P = 1.43: corrected time = metered time ^ 1.43. 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 |
|---|---|---|---|---|
| Ilfotec DD-X | 1+4 | 200 | 10m | 20°C / 68°F |
| Ilfosol 3 | 1+9 | 200 | 6m | 20°C / 68°F |
| Ilfosol 3 | 1+14 | 200 | 9m | 20°C / 68°F |
| ID-11 | stock | 200 | 10m | 20°C / 68°F |
| ID-11 | 1+1 | 200 | 17m | 20°C / 68°F |
| Microphen | stock | 200 | 8m 30s | 20°C / 68°F |
| Perceptol | stock | 200 | 14m 30s | 20°C / 68°F |
| D-76 | stock | 200 | 10m | 20°C / 68°F |
| D-76 | 1+1 | 200 | 14m 30s | 20°C / 68°F |
| HC-110 | 1+31 | 200 | 9m | 20°C / 68°F |
Showing 10 of 46 entries. Temperatures, mixing and push times for every developer →
Often used for
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