Film specifications#
- Manufacturer
- Kono!
- Film
- Donau 6
- Speed
- 6
- Process
- C-41
- Formats
- 135-24
- Base
- Triacetate
- Made in
- Austria
- Status
- In production
Character & history#
Creative color film with strong blues and ultra slow speed suitable for long exposure photography in the daytime, extremely long exposures in the evening or at night.
Description adapted from Wikipedia’s “List of photographic films” (CC BY-SA 4.0).
Exposure guide at ISO 6#
Sunny 16 for this film: f/16 at 1/6 s in bright sun. Negative film tolerates 2–3 stops of overexposure; slide film needs accuracy within about ⅓–½ stop.
| Light | f/2 | f/4 | f/8 | f/16 |
|---|---|---|---|---|
| EV 16 · Snow / beach, bright sun | 1/1000 s | 1/250 s | 1/60 s | 1/15 s |
| EV 15 · Bright sun | 1/500 s | 1/125 s | 1/30 s | 1/8 s |
| EV 14 · Hazy sun | 1/250 s | 1/60 s | 1/15 s | 1/4 s |
| EV 13 · Cloudy-bright | 1/125 s | 1/30 s | 1/8 s | 0.5 s |
| EV 12 · Overcast / open shade | 1/60 s | 1/15 s | 1/4 s | 1 s |
| EV 10 · Sunset | 1/15 s | 1/4 s | 1 s | 4 s |
| EV 8 · Bright interior | 1/4 s | 1 s | 4 s | 15 s |
| EV 5 · Home interior at night | 2 s | 8 s | 30 s | > 1 min |
| EV 3 · City street at night | 8 s | 30 s | > 1 min | > 1 min |
Push & pull options#
Tell your lab how many stops you pushed or pulled so development is adjusted for the whole roll.
| Adjustment | Rate the film at | Effect |
|---|---|---|
| Pull 1 stop | EI 3 | Lower contrast, finer grain |
| Push 1 stop | EI 12 | More contrast and grain |
| Push 2 stops | EI 24 | Strong contrast, coarse grain, blocked shadows |
| Push 3 stops | EI 48 | Strong contrast, coarse grain, blocked shadows |
Long exposures#
Most films suffer reciprocity failure beyond about 1 second: they need more exposure than the meter says. As a rule of thumb add ⅓–1 stop for 1–10 s and 1–2 stops beyond 10 s for older emulsions; modern T-grain films (and Fuji Acros) need much less. Check the manufacturer's datasheet.
More Kono! films#
Frequently asked questions#
What ISO is Kono! Donau 6?
6 — set your meter to ISO 6 for box speed.
Is Kono! Donau 6 still made?
Yes, it is currently in production (available).
How do I develop Kono! Donau 6?
C-41 process. Standard colour-negative chemistry available at almost every lab and in home kits (Tetenal/Cinestill Cs41).
Is Kono! Donau 6 available in 35mm?
Yes — formats: 135-24.
Sources & licences#
- Wikipedia: List of photographic films — CC BY-SA 4.0
Last updated October 03, 2026 · How we calculate · Sources