Film specifications#
- Manufacturer
- ORWO
- Film
- NC 19 Mask
- Speed
- 64
- Process
- ORWO 5166 / 5168
- Formats
- 135, 127, 120, sheet film
- Base
- Triacetate
- Made in
- GDR
- Status
- Discontinued — replaced by ORWOCOLOR NC 19
Character & history#
General purpose masked color negative film. Balanced for 4200K. Recommended EI is 64/19° for daylight and 50/18° for artificial light.
Description adapted from Wikipedia’s “List of discontinued photographic films” (CC BY-SA 4.0).
Exposure guide at ISO 64#
Sunny 16 for this film: f/16 at 1/60 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 | — | 1/2500 s | 1/640 s | 1/160 s |
| EV 15 · Bright sun | — | 1/1250 s | 1/320 s | 1/80 s |
| EV 14 · Hazy sun | 1/2500 s | 1/640 s | 1/160 s | 1/40 s |
| EV 13 · Cloudy-bright | 1/1250 s | 1/320 s | 1/80 s | 1/20 s |
| EV 12 · Overcast / open shade | 1/640 s | 1/160 s | 1/40 s | 1/10 s |
| EV 10 · Sunset | 1/160 s | 1/40 s | 1/10 s | 0.4 s |
| EV 8 · Bright interior | 1/40 s | 1/10 s | 0.4 s | 1.6 s |
| EV 5 · Home interior at night | 1/5 s | 0.8 s | 3.2 s | 13 s |
| EV 3 · City street at night | 0.8 s | 3.2 s | 13 s | 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 32 | Lower contrast, finer grain |
| Push 1 stop | EI 128 | More contrast and grain |
| Push 2 stops | EI 256 | Strong contrast, coarse grain, blocked shadows |
| Push 3 stops | EI 512 | 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.
Similar films#
Other color negative film around ISO 64.
- CineStill 50D ISO 50
- Lomography Redscale XR ISO 50
- Silberra Color 50 ISO 50
- 3M Ferrania NM64 ISO 64 · disc.
- Efke Color NM19 ISO 64 · disc.
- Fujifilm Fujicolor N64 ISO 64 · disc.
- Ilford Super Colorprint ISO 64 · disc.
- Kodak Kodacolor-X ISO 64 · disc.
- ORWO NC 19 ISO 64 · disc.
- Agfa Agfacolor 80L Professional ISO 80 · disc.
- Agfa Agfacolor 80S Professional ISO 80 · disc.
- Agfa Agfacolor CNS ISO 80 · disc.
- Agfa Agfacolor CNS 2 ISO 80 · disc.
- Agfa Agfacolor N80L Professional ISO 80 · disc.
- Efke Color NM20 ISO 80 · disc.
- Fujifilm Fujicolor 80 Professional Type L ISO 80 · disc.
- Fujifilm Fujicolor F-II Professional Type L ISO 80 · disc.
- Fujifilm Fujicolor Negative Film Type S ISO 80 · disc.
More ORWO films#
Frequently asked questions#
What ISO is ORWO NC 19 Mask?
64 — set your meter to ISO 64 for box speed.
Is ORWO NC 19 Mask still made?
No, it has been discontinued (1969–1972).
How do I develop ORWO NC 19 Mask?
ORWO 5166 / 5168 process.
Is ORWO NC 19 Mask available in 35mm?
Yes — formats: 135, 127, 120, sheet film.
Sources & licences#
- Wikipedia: List of discontinued photographic films — CC BY-SA 4.0
Last updated October 03, 2026 · How we calculate · Sources