Film comparison
Rollei RPX 100 vs Ultrafine Xtreme 100
What the catalogue holds about each, and the times they share. A dash means a figure has not been read off a datasheet — nothing here is estimated.
Specification side by side
| Film |
Rollei RPX 100
|
Ultrafine Xtreme 100
|
|---|---|---|
| Maker | Rollei | Ultrafine |
| ISO | 100 | 100 |
| Type | B&W negative | B&W negative |
| Process | B&W | B&W |
| Status | In production | In production |
| Formats | — | — |
| Grain (RMS) | — | — |
| Resolving power | — | — |
| Latitude | — | — |
| First released | 2014 | — |
| Reciprocity data | No | No |
| Published times | 73 | 4 |
Developers in common
Each film’s time at its own box speed in the same developer, at the same dilution and temperature. Every time opens the full table for that film in that developer.
| Dilution · °C | RPX 100 EI 100 | Xtreme 100 EI 100 |
|---|---|---|
| stock · 20 °C | 9:00 | 8:00 |
| 1+1 · 20 °C | 12:00 | 10:30 |
| Dilution · °C | RPX 100 EI 100 | Xtreme 100 EI 100 |
|---|---|---|
| Dilution B (1+31) · 20 °C | 8:00 | 8:30 |