PRIZES GALORE! Enter The ePHOTOzine Exclusive Christmas Prize Draw; Over £16,759 Worth of Prizes! Plus Two Gifts For Everbody On Christmas Day!
Join ePHOTOzine, the friendliest photography community.
Upload photos, chat with photographers, win prizes and much more for free!
APS films are coated with an invisible magnetic coating that doesn't affect picture quality but holds Information Exchange (IX) data which can be read by cameras and processing machinery. Data recorded could include the user's selected print format, date, time and information about the shooting conditions to helps the printing machine achieve optimum print quality. This is known as Print Quality Improvement (PQI).