Film information writing device, film information reading device and film information handling device

A film information writing method that writes film information comprising print format information regarding a print format and trimming information regarding a trimming area of an original image onto the film, said film information writing method including the steps of:

• selectively setting print format information using a format information setting device, the print format information being set from among multiple preset print formats with different aspect ratios;
• selectively setting trimming information using a trimming information setting device, the trimming information being set from among preset multiple trimming information items wherein the trimming information comprises a trimming magnification that defines a trimming area of the original image and wherein the trimming information setting device is operable independently from the format information setting device;
• converting the film information set in the format information setting step and the trimming information setting step into prescribed data comprising a bit pattern;
• and
• writing onto the film the data corresponding to the print format information and trimming information output from the converting step.