Copying of film under different conditions

摘要

A copier for making prints from photographic negatives has two copying stations arranged in series. A filmstrip is conveyed through the stations in succession, and each negative of the filmstrip is scanned upstream of the copying stations. The data obtained upon scanning is analyzed to calculate the amounts of copy light for the negatives and to determine whether the respective negatives are to be copied under standard conditions or nonstandard conditions. Masters requiring standard conditions are normally copied in the upstream copying station and pass through the downstream station without being copied. On the other hand, masters requiring nonstandard conditions are transported through the upstream station without being copied and are subsequently copied in the downstream station.