Color slide film · Discontinued

Kodak Kodachrome Professional

Kodak Kodachrome Professional is a color slide film rated at ISO 8, developed in Kodak. Below: specs, an exposure guide and similar stocks.

ISO 8KodakDiscontinuedSheet film
ISO 8
Box speed
Color slide
Type
Kodak
Process
Discontinued
Status
1938–1951
Years made

Film specifications#

Manufacturer
Kodak
Film
Kodachrome Professional
Speed
8/10
Process
Kodak
Formats
Sheet film
Base
Triacetate
Made in
US
Status
Discontinued

Character & history#

Professional Daylight (ISO 8) and Type A film (ISO 10) for 34000 K photofloods

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

Exposure guide at ISO 8#

Sunny 16 for this film: f/16 at 1/8 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 sun1/1250 s1/320 s1/80 s1/20 s
EV 15 · Bright sun1/640 s1/160 s1/40 s1/10 s
EV 14 · Hazy sun1/320 s1/80 s1/20 s1/5 s
EV 13 · Cloudy-bright1/160 s1/40 s1/10 s0.4 s
EV 12 · Overcast / open shade1/80 s1/20 s1/5 s0.8 s
EV 10 · Sunset1/20 s1/5 s0.8 s3.2 s
EV 8 · Bright interior1/5 s0.8 s3.2 s13 s
EV 5 · Home interior at night1.6 s6 s25 s> 1 min
EV 3 · City street at night6 s25 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.

Similar films#

Other color slide film around ISO 8.

More Kodak films#

ColorPlus 200Ektachrome E100Ektar 100Gold 200Kodacolor 100Kodacolor 200Portra 160 (Ektacolor Pro 160)Portra 400 (Ektacolor Pro 400)Portra 800 (Ektacolor Pro 800)ProImage 100T-Max 100 (Ektapan 100)T-Max 400 (Ektapan 400)T-Max P3200 (Ektapan P3200)Tri-XUltraMax 400UltraMax 800Academy 200 / Panchromatic 200BW400CNEktachrome 100 PlusEktachrome 64TEktachrome E100GEktachrome E100GXEktachrome E100VSEktachrome E200

Frequently asked questions#

What ISO is Kodak Kodachrome Professional?

8/10 — set your meter to ISO 8 for box speed.

Is Kodak Kodachrome Professional still made?

No, it has been discontinued (1938–1951).

How do I develop Kodak Kodachrome Professional?

Kodak process.

Is Kodak Kodachrome Professional available in 35mm?

Not according to our data — formats: Sheet film.

Sources & licences#

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