At last... definitive answers. Thomas Holm wrote > This can be a property of having a CMM that does not play well with a > certain profile....
> Scum dots (the popular name for what you are seeing) can also be a property > of the LUT... > I just had a conversation with Jake Morrison at Lyson, who told me just about the same thing. They have a pdf on their website "Colour management 2002" which covers this issue and how to work around it. Following his advice I updated ColorSync from 3.0, with a custom install that included the Kodak CMM, which apparently is better at this. The Kodak CMM DOES leave 255RGB where it is for both Pixl and Lyson generic Epson 1290 fotonic inkset profiles, whereas Adobe ACE, Apple CMM and Heidleberg CMM do not. Havn't tried the others. This makes sense of the whole business, allows me to get some work done, and moves me on to deciding whether the colour balance I am getting is good enough or whether I want a tailor made profile. As it turns out I am not the only one who has had this problem (Lyson have written a fix, and the tone even has a 'popular name') I wonder why it took so long to get the real answer... I can't believe that my original post was that misleading. Anyway, thanks to all. Question answered. Happy bunny. Spending much too much time reading this list, so will have to change to the digest version now. Giles =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
