Color slide film · Discontinued

Kodak Ektachrome 64T

Kodak Ektachrome 64T is a color slide film rated at ISO 64, developed in E-6. Below: specs, an exposure guide and similar stocks.

ISO 64E-6Discontinued135120Sheet film
ISO 64
Box speed
Color slide
Type
E-6
Process
Discontinued
Status
?–2012
Years made

Film specifications#

Manufacturer
Kodak
Film
Ektachrome 64T
Speed
64
Process
E-6
Formats
135, 120, Sheet film
Base
Triacetate
Made in
US
Status
Discontinued

Character & history#

Tungsten balanced fine grain color transparency film, for commercial photography for catalogs, room interiors, furniture and architectural subjects. (EPY)

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.

Lightf/2f/4f/8f/16
EV 16 · Snow / beach, bright sun—1/2500 s1/640 s1/160 s
EV 15 · Bright sun—1/1250 s1/320 s1/80 s
EV 14 · Hazy sun1/2500 s1/640 s1/160 s1/40 s
EV 13 · Cloudy-bright1/1250 s1/320 s1/80 s1/20 s
EV 12 · Overcast / open shade1/640 s1/160 s1/40 s1/10 s
EV 10 · Sunset1/160 s1/40 s1/10 s0.4 s
EV 8 · Bright interior1/40 s1/10 s0.4 s1.6 s
EV 5 · Home interior at night1/5 s0.8 s3.2 s13 s
EV 3 · City street at night0.8 s3.2 s13 s1 min
Developing E-6: Colour reversal (slide) chemistry. Fewer labs run E-6 today; it can be cross-processed in C-41 for saturated, contrasty colours.

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 Kodak films#

Frequently asked questions#

What ISO is Kodak Ektachrome 64T?

64 — set your meter to ISO 64 for box speed.

Is Kodak Ektachrome 64T still made?

No, it has been discontinued (?–2012).

How do I develop Kodak Ektachrome 64T?

E-6 process. Colour reversal (slide) chemistry. Fewer labs run E-6 today; it can be cross-processed in C-41 for saturated, contrasty colours.

Is Kodak Ektachrome 64T available in 35mm?

Yes — formats: 135, 120, Sheet film.

Sources & licences#

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

Last posts

  1. Buying Spare Memory Cards for New Cameras
  2. Should You Put a UV Filter on a Used Lens Immediately
  3. Gift Ideas for Young Photographers to Build Real Skills
  4. Should You Update Camera Firmware Immediately After Purchase
  5. Should You Register Your Camera and Lenses with the Manufacturer
  6. Best Gifts for Film Camera Fans That Go Beyond the Gear
  7. Should You Keep Your Camera Box for Resale Value
  8. Anniversary Gifts for Landscape Photographers
  9. Should You Test a New Lens Immediately Before Returns End
  10. Thoughtful Retirement Gifts for New Photographers