Film · Black and white negative
Rollei/Maco RPX 400
Rollei describes a high-speed panchromatic film with good edge sharpness, high resolving power and fine grain (RMS 14) on a triacetate base, for available-light, sports and reportage work.
Rollei data sheet: ISO 400/27, 380-660 nm, RMS 14, 110 lp/mm, +/-2 stops, pushes ISO 200-3200; 35mm (DX), 120 and bulk. Wikipedia says it is similar to Kentmere 400, made by Harman; the 4x5 was discontinued around 2020.
- Box speed
- ISO 400
- Process
- BW
- Formats
- 35mm, 120
- Grain
- Fine
- Latitude
- Good
- Reciprocity
- See table
Characteristics
Reciprocity failure
| Metered | Compensated |
|---|---|
| 1s | 2s |
| 5s | 10s |
| 10s | 30s |
| 15s | 55s |
| 20s | 80s |
Rollei's datasheet Schwarzschild table: no change from 1/1000 s to 1/2 s; effective exposure 1 s 2 s; 5 s 10 s; 10 s 30 s; 15 s 55 s; 20 s 80 s.
Development times
| Developer | Dilution | ISO | Time | Temp |
|---|---|---|---|---|
| D-76 | stock | 400 | 8m | 20°C / 68°F |
| Rodinal | 1+25 | 400 | 12m | 20°C / 68°F |
| Rodinal | 1+50 | 400 | 21m | 20°C / 68°F |
| Rodinal | 1+100 | 400 | 60m | 20°C / 68°F |
| D-76 | 1+1 | 400 | 14m | 20°C / 68°F |
| Rollei Supergrain | 1+9 | 400 | 6m | 20°C / 68°F |
| Rollei Supergrain | 1+12 | 400 | 7m | 20°C / 68°F |
| Rollei Supergrain | 1+15 | 400 | 8m 30s | 20°C / 68°F |
| ID-11 | stock | 400 | 8m | 20°C / 68°F |
| ID-11 | stock | 800 | 11m | 20°C / 68°F |
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Descriptions combine manufacturer specifications with community experience. Subjective assessments reflect common sentiment among photographers and may not match your results.