About this film

Kodak Ektachrome E100 is a modern ISO 100 colour slide (reversal) film in 135 format with 36 exposures. This is a fresh batch, best before 03/2028, so you can shoot it at box speed with no allowance for age.

Processed in E-6, it gives you a positive rather than a negative — a transparency you can view on a light box, project or scan without inverting the colours.

Image character

Extremely fine grain, clean whites, a neutral tone scale and moderately enhanced saturation and contrast. Colour is accurate rather than stylised, which makes Ektachrome a good fit for skies, water, skin tones and product colours.

Best uses

  • landscape and travel in daylight;
  • product and still-life work;
  • architecture and street scenes;
  • slide projection and highly detailed scans.

How to shoot it

Slide film has narrow exposure latitude, so meter carefully — for the highlights rather than the shadows. Slight underexposure (up to −1/3 stop) is usually fine, while overexposure blows highlights out for good. The film is daylight balanced; under tungsten light you will need a correction filter.

Process in E-6 only, not C-41. If you shot it at a different EI or want a push/pull, write that on the cassette before handing it to the lab.

Storage

Keep the film refrigerated before shooting and develop it as soon as you can afterwards. Let the cassette warm up to room temperature before loading so no condensation forms on the emulsion.

Specifications

  • Format: 135 (35 mm)
  • Exposures: 36
  • ISO: 100
  • Type: colour slide (reversal) film
  • Process: E-6
  • Best before: 03/2028

I can develop and scan your exposed E-6 film too — see film development and scanning.

Frequently asked questions

How is slide film different from negative film?

A developed negative has inverted colours and an orange mask, while slide film gives a positive image with natural colours straight away. It is less forgiving of exposure errors, but it delivers the cleanest colour and the richest shadows.

Can Ektachrome E100 be developed in C-41?

Technically yes — that is cross-processing — but you get a negative with strong colour shifts. To get a real transparency the film has to go through E-6.

Is this film fresh?

Yes, it is best before 03/2028. It is fit to shoot at its nominal ISO 100.