Photographic printing apparatus and exposure condition determining method

An exposure condition determining method, comprising the steps of:

• dividing an image frame to be printed into a plurality of portions and measuring photometrically said portions;
• selecting photometric data necessary for determining an exposure condition;
• setting weighting factors to be applied respectively to said selected photometric data, and to data determined from data obtained by photometric measuring of a plurality of rolls of film, and to data determined from data obtained by photometric measuring of image frames of a single film on which image frames to be printed are recorded;
• and
• setting an exposure condition based on a value obtained from respective weighted data which are weighted by said weighting factors.

A method for managing storage of photometric data in a photographic printing apparatus, comprising the steps of,

• determining if a vacant storage region exists,
• if no vacant storage region exists, then selecting data that has been stored for longer than a predetermined period of time, and if no data has been stored for longer than a predetermined period of time, then selecting data to be deleted
• deleting the data selected to be deleted,
• storing incoming data and management information associated with the incoming data,
• storing the date of use for each data item stored, each time the data item is used.