PURPOSE: To enable a color monitor to set color separation conditions and to confirm a color separation printer, by photographing an input medium of 2 different modes with a photographing device capable of photographing, storing its image signals in a memory, and passing them through a color correction circuit or the like in accordance with their use purpose.

CONSTITUTION: Color original 3 is placed on original setting table 2, color original 3 is automatically photographed by pushing record switch 133, an image is displayed on color monitor 26. Rotary filter 6 is rotated with motor 6', the image of color original 3 is photographed with photographing unit 7 through filters 6B, 6G, 6R in succession, the image signals of R, B, G, are stored in memory 12 through camera control 11, the stored image signal of each color is read out synchronously, provided to color monitor 26 for display successively through correction circuit 20 for setting, color control circuit 21, black printer synthesizing circuit 22, and matrix circuit 24.