GRACoL 6.0 provides a helpful chart of dot gain values CMYK inks at 50%
for various paper and line screen combinations. It lacks, however, dot
gain values at points other than 50%. I'm documenting the current dot gain
curve of a press and am interested in doing a more thorough comparison of
this data set, and I'm curious if anyone here has seen (or measured
themselves) dot gain values of a GRACoL DTR 004 sheet in steps of 5% or
10%. (Although I've not seen one, I'm assuming the GRACoL sheet has step
wedges of each color).
While the press with which I'm working may print within GRACoL's dot gain
range at 50%, I'm interested in seeing how much its gain differs in the
quarter- or three quarter-tones. I just want to be certain there isn't
anything wonky going on with the press at points other than the midtones.
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