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ROLLEI RPX 25
Low-sensitivity black-and-white negative film, especially suitable for taking pictures of detailed subjects. Due to its high resolving power and extremely fine grain, the RPX 25 has practically unlimited magnification capability.
Available Sizes
35mm
120 Roll Film
35 mm Bulk Ware
Sheet Film | 4×5"
Made with ROLLEI RPX 25
The properties of the Rollei RPX 25 ensure the very highest picture quality and make it the film of choice when extreme detail rendition and the highest fine-graining count for more than just high film speed.
ROLLEI RPX 25 Fact Sheet
Nominal Sensitivity:
ISO 25/15° | low sensitive
Sharpness:
extreme high sharpness
Exposure Latitude:
± 1 apertures
Resolving Power:
extremely high resolution power
Suitable for BW Reversal:
very suitable
ROLLEI RPX 25 Development Table
Finest Grain
The fineness of the grain of a film is measured in RMS. The higher the RMS values, the larger the grain. With a value of 8 RMS, the Rollei RPX 25 is considerably finer-grained than most other films offered in the corresponding speed class (RMS 9.5 to 10)
Agitation: In the first 60 seconds continuously, then for 5 sec every 30 seconds.
Process temperature: 20°C/68°F
The development times given below are to be understood as guide values and refer to an average contrast of γ = 0.65. Due to individual processing conditions, deviations in times are possible.
| Developer | ISO | Dilution | Time [min.] (20°C/68°F) |
|---|---|---|---|
| Rollei Supergrain | 25/15° | 1+12 | 5:30 |
| Rollei RLS | 25/15° | 1+4 | 12 (24°) |
| R09/Rodinal | 25/15° | 1+25 | 6 |
| R09 Spezial/Studio | 25/15° | 1+15 | 5:30 |
| ILFORD ID-11 | 25/15° | 1+1 | 8 |
| ILFORD PERCEPTOL | 25/15° | 1+1 | 10 |
| ILFORD ILFOSOL | 25/15° | 1+19 | 5 |
| Kodak D-76 | 25/15° | 1+1 | 8 |
| Kodak X-TOL | 25/15° | 1+1 | 8 |
| Kodak HC-110 | 25/15° | B ( 1 + 31 ) | 5 |
