From this proof, decisions are made about color balance and intensity, and whether flaws in the transparency should be corrected. Digital laser separators and their related computer systems have given the printing industry virtually unlimited ability to add or subtract details in a subject. Flaws can be smoothed out, backgrounds changed, subjects from several shots can be combined into one. The project Art Director should help you confer with the client to make decisions about what should be changed if anything. At this point, just about any changes are possible.
Budget is normally the determining factor, as system time is very costly.