Black-and-white slide film · Discontinued

Agfa Dia Direct DD 12 Professional

Agfa Dia Direct DD 12 Professional is a black-and-white slide film rated at ISO 12, developed in Dia Direct. Below: specs, an exposure guide and similar stocks.

ISO 12Dia DirectDiscontinued135
ISO 12
Box speed
Black-and-white slide
Type
Dia Direct
Process
Discontinued
Status
1980s–1995
Years made

Film specifications#

Manufacturer
Agfa
Film
Dia Direct DD 12 Professional
Speed
12
Process
Dia Direct
Formats
135
Base
Triacetate
Made in
Germany
Status
Discontinued — replaced by Scala 200x

Character & history#

Very fine grain professional film, large exposure latitude.

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

Exposure guide at ISO 12#

Sunny 16 for this film: f/16 at 1/13 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 sun1/2000 s1/500 s1/125 s1/30 s
EV 15 · Bright sun1/1000 s1/250 s1/60 s1/15 s
EV 14 · Hazy sun1/500 s1/125 s1/30 s1/8 s
EV 13 · Cloudy-bright1/250 s1/60 s1/15 s1/4 s
EV 12 · Overcast / open shade1/125 s1/30 s1/8 s0.5 s
EV 10 · Sunset1/30 s1/8 s0.5 s2 s
EV 8 · Bright interior1/8 s0.5 s2 s8 s
EV 5 · Home interior at night1 s4 s15 s> 1 min
EV 3 · City street at night4 s15 s> 1 min> 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 Agfa films#

Frequently asked questions#

What ISO is Agfa Dia Direct DD 12 Professional?

12 — set your meter to ISO 12 for box speed.

Is Agfa Dia Direct DD 12 Professional still made?

No, it has been discontinued (1980s–1995).

How do I develop Agfa Dia Direct DD 12 Professional?

Dia Direct process.

Is Agfa Dia Direct DD 12 Professional available in 35mm?

Yes — formats: 135.

Sources & licences#

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

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