Discussion: View Thread

XCMYK

  • 1.  XCMYK

    Posted 06-21-2017 10:40 AM
    I realize the new XCMYK states that using Stocastic screening creates "more colourful" results; but is not necessary. AM screening can be used but results are not as dramatic. Is anyone out there using AM screening for XCMYK and if so what screen ruling are you using?

    Mike Stewart

    ------------------------------
    Mike Stewart
    Color Manager
    Embassy Graphics
    Winnipeg MB
    (204) 697-3338 x-257
    ------------------------------


  • 2.  RE: XCMYK

    Posted 06-22-2017 10:53 AM
    Mike,

    I have used the XCMYK concept many times in the past 35-odd years with AM screening, and of course it works. The only problem is that pastel tones tend to become less saturated than at regular GRACoL/ISO 12647-2 densities, due to the mass tone effect caused by thicker ink films on the halftone dots.

    Once I started combining higher densities with FM, the mass tone problem was eliminated because the tiny FM island dots just cannot hold a thicker ink film. In fact pastels actually become cleaner.

    Bottom line: XCMYK with AM may work for images containing mostly dark, rich colors, but is probably not a good idea when you want clean, saturated pastel colors, especially pinks and light blues.

    Your results, of course, may differ.

    ........................................................
    Don Hutcheson
    HutchColor, LLC
    Washington, NJ USA
    don@...
    M: 908-500-0341
    ........................................................