Developer · C-41 colour
Tetenal Tetenal Colortec C-41
Limited availabilityC-41Processing KitBlix
Also known as: Colortec C-41, tetenal-c41
Kit designed for rotary processors. Standard 38 C, alternative 30 C, rapid one-shot 45 C. Limited availability is not confirmed by the leaflet.
- Type
- Kit
- Process
- C-41
- Temperature
- 38°C
- Dilutions
- 1
- Capacity
- 16
- Shelf life
- Opened concentrate: developer 12 weeks, bleach-fix and stabiliser 24 weeks. Unopened shelf life not stated in the C-41 leaflet (Tetenal)
30–45°C (86–113°F)
rolls per litre
concentrate
Dilutions
| Ratio | Use | Notes |
|---|---|---|
| stock | Replenishable | Kit for 1 or 2.5 litres: colour developer (3 parts), bleach-fix (2 parts) and stabiliser, mixed with water at 20-45 C. |
Shelf life
- Concentrate
- Opened concentrate: developer 12 weeks, bleach-fix and stabiliser 24 weeks. Unopened shelf life not stated in the C-41 leaflet (Tetenal)
- Working Solution
- Used solution: developer 6 weeks, bleach-fix and stabiliser 24 weeks; keep in completely full, well sealed bottles (Tetenal)
Tetenal: maximum 16 rolls of 135-36 or 120 per litre kit (40 for the 2.5 litre kit). With mostly ISO 400 or faster films the maker recommends only three development runs per litre of developer.
Development times
| Film | Dilution | ISO | Time | Temp |
|---|---|---|---|---|
| Portra 400 | stock | 400 | 3m 15s | 38°C (100°F) |
| Portra 400 | stock | 800 | 3m 45s | 38°C (100°F) |
| Portra 400 | stock | 1600 | 4m 15s | 38°C (100°F) |
| Portra 400 | stock | 400 | 8m | 30°C (86°F) |
| Portra 400 | stock | 400 | 2m | 45°C (113°F) |
| Portra 160 | stock | 160 | 3m 15s | 38°C (100°F) |
| Portra 800 | stock | 800 | 3m 15s | 38°C (100°F) |
| Ektar 100 | stock | 100 | 3m 15s | 38°C (100°F) |
| Gold 200 | stock | 200 | 3m 15s | 38°C (100°F) |
| Ultramax 400 | stock | 400 | 3m 15s | 38°C (100°F) |
Showing 10 of 18 entries.
Often used for
Home C-41 processingStandard colour negative work
Limitations & warnings
- Production uncertain — Tetenal 1847 filed for insolvency in 2019, restructured under new ownership but supply remains inconsistent
- Stock availability varies by retailer
- Some retailers marking as closeout
Descriptions combine manufacturer specifications with community experience. Subjective assessments reflect common sentiment among photographers and may not match your results.