Ultrafin Plus
B&W developer
Liquid concentrate
In production
Development times
| Film | Dilution | EI | Temp | Time | Agitation | Source |
|---|---|---|---|---|---|---|
| Pan F Plus | 1+4 | 50 | 20.0 °C | 5:00 | Ilford — 4 inversions every 60 s | |
| FP4 Plus | 1+4 | 125 | 20.0 °C | 6:00 | Ilford — 4 inversions every 60 s | |
| FP4 Plus | 1+4 | 200 push 0.75 stops | 20.0 °C | 9:00 | Ilford — 4 inversions every 60 s | |
| Ilford Delta 100 Pro | 1+4 | 100 | 20.0 °C | 5:00 | Ilford — 4 inversions every 60 s | |
| Ilford Delta 100 Pro | 1+4 | 200 push 1 stop | 20.0 °C | 7:00 | Ilford — 4 inversions every 60 s | |
| Ilford HP5+ | 1+4 | 400 | 20.0 °C | 7:00 | Ilford — 4 inversions every 60 s | |
| Ilford HP5+ | 1+4 | 800 push 1 stop | 20.0 °C | 10:00 | Ilford — 4 inversions every 60 s | |
| Ilford HP5+ | 1+4 | 1600 push 2 stops | 20.0 °C | 13:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 200 pull 1 stop | 20.0 °C | 6:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 400 | 20.0 °C | 7:30 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 500 push 0.25 stops | 20.0 °C | 10:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 800 push 1 stop | 20.0 °C | 12:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 1600 push 2 stops | 20.0 °C | 16:30 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 200 pull 1 stop | 24.0 °C | 5:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 400 | 24.0 °C | 6:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 500 push 0.25 stops | 24.0 °C | 8:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 800 push 1 stop | 24.0 °C | 8:30 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 1600 push 2 stops | 24.0 °C | 10:00 | Ilford — 4 inversions every 60 s | |
| Delta 400 Professional | 1+4 | 3200 push 3 stops | 24.0 °C | 13:30 | Ilford — 4 inversions every 60 s | |
| Fomapan 400 Action | 1+4 | 400 | 20.0 °C | 7:00 | — | |
| Fomapan 400 Action | 1+6 | 400 | 20.0 °C | 11:00 | — | |
| Fomapan 100 Classic | 1+4 | 100 | 20.0 °C | 5:00 | — | |
| Fomapan 100 Classic | 1+6 | 100 | 20.0 °C | 7:30 | — | |
| Fomapan 200 Creative | 1+4 | 200 | 20.0 °C | 5:00 | — | |
| Fomapan 200 Creative | 1+6 | 200 | 20.0 °C | 7:00 | — | |
| Foma Ortho 400 | 1+4 | 400 | 20.0 °C | 7:00 | — | |
| Foma Ortho 400 | 1+4 | 400 | 30.0 °C | 2:30 | — | |
| Pan 100 | 1+4 | 100 | 20.0 °C | 6:00 | Ilford — 4 inversions every 60 s | |
| Pan 100 | 1+4 | 200 push 1 stop | 20.0 °C | 9:00 | Ilford — 4 inversions every 60 s | |
| RPX 25 | 1+4 | 25 | 20.0 °C | 5:00 | — | |
| RPX 100 | 1+4 | 100 | 20.0 °C | 8:00 | — | |
| RPX 400 | 1+4 | 400 | 20.0 °C | 8:00 | — | |
| Retro 80S | 1+4 | 80 | 20.0 °C | 8:00 | — | |
| Retro 400S | 1+4 | 400 | 20.0 °C | 8:00 | — |
Reuse
Checked 21 October 2026
The maker’s sheet doesn’t say whether it can be reused.
Dilutions
- 1+4 1 + 4 water
- 1+6 1 + 6 water
Link to this page
Specification
- Type
- B&W developer
- Form
- Liquid concentrate
- Capacity rolls per litre
- —
- Shelf life, unopened
- —
- Shelf life, opened
- —
A dash means the figure has not been read off the maker’s sheet. A guess here would produce wrong answers silently.
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