Color reversal films (also called color positive) are used to create slides and transparencies.

First there is a black-and-white development, yielding a negative silver image. After chemical fogging of the unexposed silver halide, a color developer is used to simultaneously reduce the unreacted silver halide and generate dye. When all of the silver is removed, a positive color image remains.

The multifunctional teams that design Kodak's color reversal products include representatives from R&D, manufacturing, and manufacturing process research – as well as our Kodak Professional and Consumer Imaging business units. These teams work across their organizational boundaries, negotiating key strategic issues and sharing risks.

Both professional photographers and consumers use color reversal film products. Throughout new product development, customer contact and awareness is vital – from initial product concept and program inception, to customer mentorship during product design, through product evaluation (before and after product introduction).

The strong influence of Kodak customers can be seen in the performance of several new transparency films that we introduced in the last few years:

• KODAK PROFESSIONAL EKTACHROME Film E200 (introduced Nov. 1997): The first high-speed transparency film with the image structure of a 100 speed film. It can be push-processed to 1000-speed and beyond with minimal loss of image quality. Especially valued by photojournalists, sports photographers, and any photographers who deal with limited lighting, uncontrolled conditions, and slow lenses. Our consumer film ELITE Chrome 200 utilizes the same technology to address critical needs of advanced amateur photographers.

• KODAK PROFESSIONAL EKTACHROME E100VS and ELITE CHROME ExtraColor 100 (both introduced 1999): These films feature significantly higher color saturation than any other 100-speed transparency film. Ideal for photographers who must create dramatic, high-color images that "spring to life" on the light-box. However, these films also have a very neutral tone scale, which allows them to render grays, pastels, and skin tones much more accurately than other high-color films.
  

These films utilize a patented new technology in a unique new color-amplifying layer. This layer contains a high laydown of ultra-fine, sub-microscopic silver halide crystals blended with a small amount of "causer" crystals. Upon exposure and development, this combination of special crystals releases chemical components that direct the development of underlying layers, enhancing colors and boosting sharpness.

This technology allows these films to produce dramatic, vivid color saturation at a true 100-speed, while meeting the exacting demands of advanced amateurs and professional photographers in other film features (such as excellent push-processing and world-class reciprocity).

Motion-picture transparency film based on the same technology is now sold as KODAK EKTACHROME 100D.