Film comparison
Rollei RPX 25 vs Kodak T-Max 100
- T-Max 100 is 2 stops faster (ISO 100 vs 25).
- RPX 25 is cheaper in 35mm (about £9.00 vs £12.50).
Side by side
| RPX 25 | T-Max 100 | |
|---|---|---|
| Manufacturer | Rollei | Kodak |
| Type | Black & white | Black & white |
| Box speed | ISO 25 | ISO 100 |
| Process | B&W | B&W |
| Formats | 35mm, 120, 4x5 | 35mm, 120, 4x5, 8x10 |
| Grain | Very fine | Very fine |
| Contrast | Medium high | Medium high |
| Latitude | Good | Good |
| Saturation | — | — |
| Price, 35mm | about £9.00 | about £12.50 |
| Price, 120 | about £8.50 | about £10.50 |
| Availability | Current | Current |
Rows that differ are in bold. Prices are typical UK prices and change often.
How they look
- RPX 25
- Ultra-slow panchromatic with exceptional resolution and sharpness. Silver-rich emulsion. Formerly Agfa APX 25.
- T-Max 100
- Professional tabular grain film with very fine grain and notable sharpness. Well-suited for detailed work and large enlargements.
Which suits what
Better pick: RPX 25
Macro
Both work well
Studio, Architecture
Better pick: T-Max 100
Landscapes
Long exposures (reciprocity)
| Metered | RPX 25 | T-Max 100 |
|---|---|---|
| 1s | 1s | 1s |
| 10s | 21s | 15s |
| 30s | 1m 32s | 56s |
| 2m | 9m 43s | 4m |
Corrected exposure from each film’s published reciprocity data. Reciprocity calculator
Developing both
Developers with published times for both films: