Kodachrome offers it's own unique colour and tones. It's now only processed by one shop in the world which is located in the USA. I feel privileged to be able to shoot with it.
Kodachrome is the trademarked name of a brand of color reversal film sold by Eastman Kodak. Since its introduction in 1935 it has been produced in various transparency (slide) and movie formats (8mm, 16mm and 35mm), and was for many years the standard film for professional color photography, especially when submitting images to major magazines such as National Geographic. Since early 2007 it has been produced only in 35mm (135) slide film format, in one speed, ISO 64.
Kodachrome is the oldest successfully mass-marketed color still film using a subtractive method (see color photography for details of earlier additive/'screenplate' methods such as Autochrome and Dufaycolor). Kodachrome has been through many incarnations and undergone four major developing process changes over the years; the current is the K-14 process.
Kodachrome is widely regarded as one of the best films available for the archival and professional market because of its color accuracy and dark-storage longevity. This longevity was demonstrated in February 2007 with the discovery of a Kodachrome 8 mm reel shot by George Jefferies of President John F. Kennedy just 90 seconds before his assassination in 1963. This film is now on display at the Sixth Floor Museum in Dallas.
Because of both the longevity and the tonal range of Kodachrome colors, Kodachrome has been used by professional photographers like Alex Webb and Steve McCurry. McCurry's famous image of Sharbat Gula, the "Afghan girl" portrait taken in 1984 for the National Geographic, was taken with Kodachrome.
When shot with a high quality lens, a 35 mm Kodachrome slide will hold detail equivalent to 25 or more megapixels of image data.