The wording, line pairs per mm, implies two black lines and two white lines in as much as "pairs" is plural and also because there are many more than two lines in the target. This would mean that line pairs per mm would be half of lines per mm.
Regards, Bob... -------------------------------------------- "Do not suppose that abuses are eliminated by destroying the object which is abused. Men can go wrong with wine and women. Shall we then prohibit and abolish women?" -Martin Luther From: "Keith Whaley" <[EMAIL PROTECTED]> > Let me get some of my confusion straightened out, before I go into > overload! <g> > > Some sources I've read and some posts I've read here quote line pairs > per mm, while others speak of lines per mm as resolution values. > I have observed some posters using one value when they meant the other, > and I doubt they intend to. > I think we ought to stick with one system of measurement, for clarity, > and I'm intending to start with me!

