Advanced Photo System
Advanced Photo System (APS) refers to the 24 mm film that is the standard format for still photography. There are three different types of APS film that are classified as either “H,” “C” or “P.” In this system, “H” stands for HDTV format, “C” for classic format and “P” for panoramic format. Apart from the occasional disposable camera, nearly all APS cameras come equipped to record in each of these formats.
In the HDTV and classic mode of advanced photo systems, the film records the image in a particular aspect ratio that can then be reprinted in a variety sizes.
Unlike other film formats, APS film can record more that just the image. Along with the visual details of a given scene, APS film can also document the date, time, a caption and details related to how the shot was captured (i.e. the particular setting of the shutter speed or aperture).
The film generally records this information in “magnetic IX” or “optical IX” modes. While higher end cameras use the magnetic IX method, less expensive cameras, such as disposable cameras, tend to use the optical IX version of information storage. Because the magnetic IX mode is only available on more expensive cameras, it accurately records more information.