FP4 Plus
ISO 125
B&W negative
B&W
In production
Photo: www.ilfordphoto.com
Specification
Table 1- Nominal ISO
- 125
- Process
- B&W
- Status
- In production
- First released
- 1990
- Available formats
- not given
- BaseFilm base The clear, flexible support that carries the emulsion. Read more in the glossary ›
- Acetate
- EmulsionEmulsion The light-sensitive layer of a film: tiny crystals of silver halide held in gelatin. Read more in the glossary ›
- Cubic
- Spectral sensitivitySpectral sensitivity Which colours of light a film responds to, and how strongly. Read more in the glossary ›
-
Panchromatic — what this means
Sensitive to the whole visible spectrum, so colours turn into greys roughly the way the eye weighs them. This is what almost every general-purpose black and white film is. It has to be loaded and developed in complete darkness — no safelight is safe for it.
- Grain (RMS)Grain The visible, sand-like texture in a photograph that comes from the clumps of silver or dye that form the image. Read more in the glossary ›
- not given
- Resolving power, line pairs / mm
- not given
- Maximum densityDensity How much light a negative, transparency or print blocks. Read more in the glossary ›
- not given
- Latitude overExposure latitude How far a film can be over- or underexposed and still give a usable result. Read more in the glossary ›
- not given
- Latitude under
- not given
A dash means the figure has not been read off a datasheet. Nothing here is estimated.
Development times
Open in the calculator ›Rated at — box speed marked
Showing 43 of 89 published times.
| Developer | Dilution | EI | Temp | Time | Agitation | Source |
|---|---|---|---|---|---|---|
| Acufine | stock 20.0 °C | 125 | 4:00 | Ilford — 4 inversions every 60 s | ||
| Rodinal | 1+25 20.0 °C | 125 | 9:00 | Ilford — 4 inversions every 60 s | ||
| Rodinal | 1+50 20.0 °C | 125 | 15:00 | Ilford — 4 inversions every 60 s | ||
| ID-11 | 1+1 20.0 °C | 125 | 11:00 | Ilford — 4 inversions every 60 s | ||
| ID-11 | 1+3 20.0 °C | 125 | 20:00 | Ilford — 4 inversions every 60 s | ||
| ID-11 | stock 20.0 °C | 125 | 8:30 | Ilford — 4 inversions every 60 s | ||
| Ilfosol 3 | 1+14 20.0 °C | 125 | 7:30 | Ilford — 4 inversions every 60 s | ||
| Ilfosol 3 | 1+9 20.0 °C | 125 | 4:15 | Ilford — 4 inversions every 60 s | ||
| Ilfotec DD-X | 1+4 20.0 °C | 125 | 10:00 | Ilford — 4 inversions every 60 s | ||
| Ilfotec HC | 1+15 20.0 °C | 125 | 4:00 | Ilford — 4 inversions every 60 s | ||
| Ilfotec HC | 1+31 20.0 °C | 125 | 8:00 | Ilford — 4 inversions every 60 s | ||
| Ilfotec LC29 | 1+19 20.0 °C | 125 | 8:00 | Ilford — 4 inversions every 60 s | ||
| Ilfotec LC29 | 1+29 20.0 °C | 125 | 12:00 | Ilford — 4 inversions every 60 s | ||
| Ilfotec LC29 | 1+9 20.0 °C | 125 | 4:00 | Ilford — 4 inversions every 60 s | ||
| Microphen | 1+1 20.0 °C | 125 | 10:00 | Ilford — 4 inversions every 60 s | ||
| Microphen | 1+3 20.0 °C | 125 | 14:00 | Ilford — 4 inversions every 60 s | ||
| Microphen | stock 20.0 °C | 125 | 8:00 | Ilford — 4 inversions every 60 s | ||
| Perceptol | 1+1 20.0 °C | 125 | 15:00 | Ilford — 4 inversions every 60 s | ||
| Perceptol | 1+3 20.0 °C | 125 | 21:00 | Ilford — 4 inversions every 60 s | ||
| Perceptol | stock 20.0 °C | 125 | 12:00 | Ilford — 4 inversions every 60 s | ||
| D-76 | 1+1 20.0 °C | 125 | 11:00 | Ilford — 4 inversions every 60 s | ||
| D-76 | 1+3 20.0 °C | 125 | 16:00 | Ilford — 4 inversions every 60 s | ||
| D-76 | stock 20.0 °C | 125 | 8:00 | Ilford — 4 inversions every 60 s | ||
| HC-110 | Dilution A (1+15) 20.0 °C | 125 | 4:30 | Ilford — 4 inversions every 60 s | ||
| HC-110 | Dilution B (1+31) 20.0 °C | 125 | 9:00 | Ilford — 4 inversions every 60 s | ||
| T-Max Developer | 1+4 20.0 °C | 125 | 8:00 | Ilford — 4 inversions every 60 s | ||
| XTOL | stock 20.0 °C | 125 | 8:30 | Ilford — 4 inversions every 60 s | ||
| Ultrafin Plus | 1+4 20.0 °C | 125 | 6:00 | Ilford — 4 inversions every 60 s | ||
| Ultrafin SF | 1+1 20.0 °C | 125 | 11:00 | Ilford — 4 inversions every 60 s | ||
| Ultrafin SF | stock 20.0 °C | 125 | 7:00 | Ilford — 4 inversions every 60 s | ||
| Ilfotec DD | 1+4 24.0 °C | 125 | 8:30 | Machine — continuous | ||
| T-Max RS | stock 24.0 °C | 125 | 7:30 | Machine — continuous | ||
| XTOL | stock 24.0 °C | 125 | 7:00 | Machine — continuous | ||
| Ilfotec RT Rapid | 1+1+2 26.0 °C | 125 | 0:45 | Machine — continuous | ||
| Ilfotec RT Rapid | 1+1+5 26.0 °C | 125 | 1:05 | Machine — continuous | ||
| FX-39 Type II | 1+9 20.0 °C | 125 | 6:00 | — | ||
| Fomadon Excel W27 | 1+1 20.0 °C | 125 | 14:00 | — | ||
| Fomadon Excel W27 | stock 20.0 °C | 125 | 10:00 | — | ||
| Fomadon LQN | 1+10 20.0 °C | 125 | 9:00 | — | ||
| Fomadon P | 1+1 20.0 °C | 125 | 13:00 | — | ||
| Fomadon P | stock 20.0 °C | 125 | 10:00 | — | ||
| Fomadon R09 | 1+50 20.0 °C | 125 | 18:00 | — | ||
| Monobath Film Developer | working solution 21.0 °C | 125 | 6:15 | — |
Development times by developer
24 developers- Acufine — FP4 Plus in Acufine 2
- D-76 — FP4 Plus in D-76 9
- FX-39 Type II — FP4 Plus in FX-39 Type II 1
- Fomadon Excel W27 — FP4 Plus in Fomadon Excel W27 2
- Fomadon LQN — FP4 Plus in Fomadon LQN 1
- Fomadon P — FP4 Plus in Fomadon P 2
- Fomadon R09 — FP4 Plus in Fomadon R09 1
- HC-110 — FP4 Plus in HC-110 5
- ID-11 — FP4 Plus in ID-11 8
- Ilfosol 3 — FP4 Plus in Ilfosol 3 2
- Ilfotec DD — FP4 Plus in Ilfotec DD 3
- Ilfotec DD-X — FP4 Plus in Ilfotec DD-X 3
- Ilfotec HC — FP4 Plus in Ilfotec HC 5
- Ilfotec LC29 — FP4 Plus in Ilfotec LC29 7
- Ilfotec RT Rapid — FP4 Plus in Ilfotec RT Rapid 6
- Microphen — FP4 Plus in Microphen 6
- Monobath Film Developer — FP4 Plus in Monobath Film Developer 3
- Perceptol — FP4 Plus in Perceptol 6
- Rodinal — FP4 Plus in Rodinal 4
- T-Max Developer — FP4 Plus in T-Max Developer 2
- T-Max RS — FP4 Plus in T-Max RS 1
- Ultrafin Plus — FP4 Plus in Ultrafin Plus 2
- Ultrafin SF — FP4 Plus in Ultrafin SF 4
- XTOL — FP4 Plus in XTOL 4
Long exposures
Reciprocity
| Metered | Expose |
|---|---|
| 1 s | 1 s |
| 2 s | 2.4 s |
| 5 s | 7.6 s |
| 10 s | 18 s |
| 30 s | 1 min 13 s |
| 1 min 00 s | 2 min 54 s |
| 2 min 00 s | 6 min 57 s |
| 5 min 00 s | 22 min 02 s |
Tc = Tm^P for metered times over 1 s; 1 s or less needs no correction (P = 1.26)
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