Can a monochrome image have a color tint or spot color and be entered in competition?
The DCC definition for monochrome prints follows PSA rules. One color tinting of a print is permitted, i.e. sepia, or prints may be enhanced by adding a single color. This interpretation may be found on the PSA website, www.psa-photo.org, as follows. Go to “Divisions” (index on left side of home page) and select “Pictorial Print”. Click on “International Club Print Competition” in the middle of the page and see “Entry Rules – Item 7”. In correspondence with PSA folks, it is obvious that this is an often discussed rule without unanimous support. Its origin probably goes back to the 1930s or earlier when “color prints” were mostly hand tinted BWs – add one color, still mono – add more than one color, then color. One would sometimes hand color a single detail (lips, flower bud, etc.) in a mono print.