Film comparison
Silberra Ultima 100 vs Rollei RPX 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 |
Silberra Ultima 100
|
Rollei RPX 100
|
|---|---|---|
| Maker | Silberra | Rollei |
| 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 | 2017 | 2014 |
| Reciprocity data | No | No |
| Published times | 9 | 73 |
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 | Ultima 100 EI 100 | RPX 100 EI 100 |
|---|---|---|
| 1+25 · 20 °C | 6:00 | 9:00 |
Also with a box-speed time for each film, but not at a shared dilution and temperature: Kodak D-76, Kodak XTOL.