If your measurement device is a i1 Display 2, i1 Display Pro, ColorMunki Display, DTP94, Spyder2/3/4/5, you'll want to import the colorimeter corrections that are part of the vendor software packages, which can be used to better match the instrument to a particular type of display. Note: The full range of measurement modes for the Spyder4/5 are also only available if they are imported from the Spyder4/5 software.