Color slide film · Discontinued

ORWO UT 16

ORWO UT 16 is a color slide film rated at ISO 32, developed in ORWO 9165. Below: specs, an exposure guide and similar stocks.

ISO 32ORWO 9165Discontinued135120
ISO 32
Box speed
Color slide
Type
ORWO 9165
Process
Discontinued
Status
1968–1978
Years made

Film specifications#

Manufacturer
ORWO
Film
UT 16
Speed
32
Process
ORWO 9165
Formats
135, 120
Base
Triacetate
Made in
GDR
Status
Discontinued

Character & history#

New-generation slow speed slide film for daylight. Probably produced in small quantities.

Description adapted from Wikipedia’s “List of discontinued photographic films” (CC BY-SA 4.0).

Exposure guide at ISO 32#

Sunny 16 for this film: f/16 at 1/30 s in bright sun. Negative film tolerates 2–3 stops of overexposure; slide film needs accuracy within about ⅓–½ stop.

Lightf/2f/4f/8f/16
EV 16 · Snow / beach, bright sun—1/1250 s1/320 s1/80 s
EV 15 · Bright sun1/2500 s1/640 s1/160 s1/40 s
EV 14 · Hazy sun1/1250 s1/320 s1/80 s1/20 s
EV 13 · Cloudy-bright1/640 s1/160 s1/40 s1/10 s
EV 12 · Overcast / open shade1/320 s1/80 s1/20 s1/5 s
EV 10 · Sunset1/80 s1/20 s1/5 s0.8 s
EV 8 · Bright interior1/20 s1/5 s0.8 s3.2 s
EV 5 · Home interior at night0.4 s1.6 s6 s25 s
EV 3 · City street at night1.6 s6 s25 s> 1 min

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 ORWO films#

Frequently asked questions#

What ISO is ORWO UT 16?

32 — set your meter to ISO 32 for box speed.

Is ORWO UT 16 still made?

No, it has been discontinued (1968–1978).

How do I develop ORWO UT 16?

ORWO 9165 process.

Is ORWO UT 16 available in 35mm?

Yes — formats: 135, 120.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources