Film comparison
Ilford Ortho Plus vs Rollei/Maco Ortho 25 Plus
- Ortho Plus is 1.7 stops faster (ISO 80 vs 25).
- Ortho 25 Plus has finer grain.
Side by side
| Ortho Plus | Ortho 25 Plus | |
|---|---|---|
| Manufacturer | Ilford | Rollei/Maco |
| Type | Black & white | Black & white |
| Box speed | ISO 80 | ISO 25 |
| Process | B&W | B&W |
| Formats | 35mm, 120, 4x5, 8x10 | 35mm, 120, 4x5 |
| Grain | Fine | Very fine |
| Contrast | Medium high | — |
| Latitude | Good | — |
| Saturation | — | — |
| Price, 35mm | about £9.00 | — |
| Price, 120 | about £8.00 | — |
| Availability | Current | Current |
Rows that differ are in bold. Prices are typical UK prices and change often.
How they look
- Ortho Plus
- Orthochromatic film sensitive to blue and green only. Can be handled under red safelight. Reds and oranges render dark.
- Ortho 25 Plus
- Very fine grained, high-resolution orthochromatic film; replaced Rollei Ortho 25 in 2017.
Which suits what
Better pick: Ortho Plus
Foliage, Darkroom handling
Both work well
Portraits
Better pick: Ortho 25 Plus
Architecture, Copy work
Long exposures (reciprocity)
| Metered | Ortho Plus | Ortho 25 Plus |
|---|---|---|
| 1s | 1s | 1s |
| 10s | 18s | 20s |
| 30s | 1m 10s | 1m 15s |
| 2m | 6m 37s | 6m |
Corrected exposure from each film’s published reciprocity data. Reciprocity calculator