Film comparison
CatLABS CatLABS X Film 320 (120/Sheet) vs Kodak T-Max 400
- T-Max 400 is 0.3 stops faster (ISO 400 vs 320).
- T-Max 400 has finer grain.
- T-Max 400 is more forgiving of exposure errors.
Side by side
| CatLABS X Film 320 (120/Sheet) | T-Max 400 | |
|---|---|---|
| Manufacturer | CatLABS | Kodak |
| Type | Black & white | Black & white |
| Box speed | ISO 320 | ISO 400 |
| Process | B&W | B&W |
| Formats | 120, 4x5 | 35mm, 120, 4x5, 8x10 |
| Grain | Fine | Very fine |
| Contrast | Medium | Medium |
| Latitude | Good | Excellent |
| Saturation | — | — |
| Price, 35mm | — | about £12.50 |
| Price, 120 | about £11.00 | about £10.50 |
| Availability | Current | Current |
Rows that differ are in bold. Prices are typical UK prices and change often.
How they look
- CatLABS X Film 320 (120/Sheet)
- Different emulsion from the 35mm version (which is Kodak Double-X). Origin unclear - likely aerographic stock with finer grain.
- T-Max 400
- Known for exceptionally fine grain among 400-speed B&W films. Tabular grain technology offers high sharpness and resolving power.
Which suits what
Better pick: CatLABS X Film 320 (120/Sheet)
Medium format, Large format, Fine detail
Both work well
—
Better pick: T-Max 400
Architecture, Studio, High detail
Long exposures (reciprocity)
| Metered | CatLABS X Film 320 (120/Sheet) | T-Max 400 |
|---|---|---|
| 1s | No data | 1s |
| 10s | No data | 17s |
| 30s | No data | 1m 8s |
| 2m | No data | 6m 19s |
Corrected exposure from each film’s published reciprocity data. Reciprocity calculator
Developing both
Developers with published times for both films: