It is only used on APS films format IX240, also known as Advantix.

Other DX-enabled SLRs were introduced in 1985 as well: Minolta 7000 (February 1985) and 9000 (September 1985), as well as the Nikon F-301 / N2000.ĭX-iX (data exchange - information exchange) is an expanded DX encoding system introduced in 1996 to be used in conjunction with the Advanced Photo System (APS). Pentax instead claimed the A3 / A3000 was the first DX-enabled SLR in 1985. The first cameras to use the technology was the Konica TC-X SLR (1985), as well as the compact cameras Pentax Super Sport 35 / PC 35AF-M and Minolta AF-E / Freedom II in 1984. The first DX encoded film was the color negative film Kodacolor VR-1000 in March 1983. In contrast to former solutions like Fuji's film speed encoding method in 1977, which was already using electrical contacts for film speed detection on 135 format cartridges, Kodak's later DX code system immediately met success in the marketplace.

In order to simplify the handling of 35 mm film in 135 format Kodak introduced the DX encoding method on 3. 4.2 Reading DX Camera Auto Sensing codes.

Encoding in film