Development time
Ilford SFX 200 in HC-110
9:00 at 20°C, B (1+31) dilution, box speed.
Start timer · 9:00Time
9:00
Standard
Dilution
B (1+31)
Temperature
20°C
Box speed
ISO 200
B&W
All 2 times
| Dilution | EI | Time | Temp | Agitation | Timer |
|---|---|---|---|---|---|
| B (1+31) | 200 | 9:00 | 20°C / 68°F | Standard | Start timer |
| B (1+31) | 400+1 stop | 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 |
|---|---|---|---|---|---|---|
| 11:15 | 10:05 | 9:00 | 8:06 | 7:12 | 6:29 | 5:51 |
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) |
|---|---|---|
| B (1+31) | 9.4 ml developer + 291 ml water | 16 ml developer + 484 ml water |
How they work together
- HC-110
- Fine grain, high acutance, full film speed, normal contrast. Full-scale with good shadow detail.
- Ilford SFX 200
- Extended red sensitivity up to 740nm. Creates infrared-style effects with 720nm filter. Not true IR film but produces similar aesthetic.
- Notes on this pairing
- Pushed +1 stop.
SFX 200 in other developers
Other films in HC-110
Kodak Tri-X 400
3:45
B (1+31) · EI 400 · 20°C · 3 variants
Kodak T-Max 400
5:30
B (1+31) · EI 400 · 20°C
Ilford HP5 Plus
5:00
B (1+31) · EI 400 · 20°C
Ilford Delta 400
7:30
B (1+31) · EI 400 · 20°C · 3 variants
Foma Bohemia Fomapan 400 Action
6:30
B (1+31) · EI 400 · 20°C
Harman Technology Kentmere Pan 400
8:00
B (1+31) · EI 400 · 20°C
Kodak Double-X 5222
6:00
B (1+31) · EI 250 · 20°C · 2 variants
Foma Bohemia Retropan 320 Soft
7:30
B (1+31) · EI 320 · 20°C
Rollei/Maco Retro 80S
8:00
B (1+31) · EI 80 · 20°C
FILM Ferrania P30
5:00
B (1+31) · EI 80 · 20°C
Adox CHS 100 II
5:30
B (1+31) · EI 100 · 20°C
Shanghai General Film Shanghai GP3 400
7:30
B (1+31) · EI 400 · 20°C
Bergger Pancro 400
9:00
B (1+31) · EI 400 · 20°C