Ektachrome Kodak Ektachrome appears nearly ready for its comeback. Beta testers have been trying out the latest iteration of the iconic film.   First launched in 1946, Ektachrome was one of the most popular color slide films, known for its color accuracy, fine grain, and rich tones. It became a popular choice among photographers in large part due the extensive use of slide film by the National Geographic Magazine over several decades.     Ektachrome is unique because it creates a positive image that can be viewed or projected once it is exposed and processed. The film is popular with cinematographers and works well for high-resolution projection or…