| 摘要 |
PURPOSE:To always execute photograph printing of a large quantity of negative films under a prescribed condition by deriving setting of a printing condition in case of the photograph printing from a mean value of a user by a photograph printing device. CONSTITUTION:First of all, in every developing place, negative films of about 1,000 sheets are measured photometrically by an optical sensor 8, and an average density value Ui (i=R, G and B) is derived in advance at every R, G and B. This average density value Ui is an average value which has added its area and a season. With respect to this average density value Ui, <=0.5 density, >=1.0 density, and an intermediate density are set as an under-negative, an over-negative, and a normal negative, respectively. Also, a light quantity of three colors is adjusted by an area variation or a transmissivity variation by inserting a filter constituted of three colors of Y, M and C onto an optical path 22. |
