RPX-D
B&W developer
Liquid concentrate
In production
Development times
| Film | Dilution | EI | Temp | Time | Agitation | Source |
|---|---|---|---|---|---|---|
| RPX 400 | 1+11 | 400 | 20.0 °C | 11:00 | — | |
| RPX 400 | 1+7 | 800 push 1 stop | 22.0 °C | 13:00 | — | |
| RPX 400 | 1+5 | 1600 push 2 stops | 24.0 °C | 14:00 | — | |
| RPX 400 | 1+4 | 3200 push 3 stops | 25.0 °C | 15:00 | — | |
| Retro 400S | 1+11 | 400 | 20.0 °C | 11:00 | — | |
| Retro 400S | 1+7 | 800 push 1 stop | 22.0 °C | 13:00 | — |
Reuse
Checked 21 October 2026
The maker’s sheet doesn’t say whether it can be reused.
Dilutions
- 1+4 1 + 4 water
- 1+5 1 + 5 water
- 1+7 1 + 7 water
- 1+11 1 + 11 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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