MOIRE PATTERNS
When I say "painstakingly calibrated", I mea that you need to have the
Linotronic service reps to a precise densitometer testing on your machine when
you get it. I don't know all the details, but the exposure settings on a Lino
can change/degrade over time, due to shipping, etc. Also, there is an
occasional problem here and there with the mirrors, like a spec of dust getting
in the way (whick can cause hairlines to appear in the output). What you should
definitely do is get some test examples from the major programs you plan to
output, along with some "pure" handwritten PostScript code, and out them while
you've got the service reps there… check to see consistency of grays, line
rules, etc.
On another note, I've only used non-round screen dots on the LaserWriter; I
see no reason why they wouldn't work on the Lino, but memory might become a
factor (longer processing too).
-Scott Leyes