Re: Controlling light cyan and light magenta
Re: Controlling light cyan and light magenta
- Subject: Re: Controlling light cyan and light magenta
- From: David Wollmann <email@hidden>
- Date: Thu, 29 Nov 2001 14:51:33 -0700
- Organization: Luna Vista Imaging
Peter Merck
>
Also, theres got to be a better way of setting the ink limit profile than
>
just looking at the scale and guessing.
>
I have an EPS file that I got from Onyx that I use for judging gray
balance and ink restrictions for Raw output from a printer. This file
gives me much better feedback then the "L" wedges ink restriction file
that comes with PosterShop.
The idea is to turn off all lighter shades and just print the "dark"
versions of all inks, all set to 100 percent. From here you judge the
results for ink bleeding and pooling, if there is any, then reduce from
100 percent to something lower, try reducing in 10 or 20 percent moves,
something along those lines. Plus you can observe your output for gray
balance and make adjustment based on your interpretation of gray. Maybe
your magenta is too high, and things look a little pink, well this can
be restricted more than the cyan, as an example.
Once you get your full strength inks where they look good and there is
no bleeding or pooling, then you add in your lighter shades at somewhere
around 10 percent less, and print the file again. Adding in the lighter
shades always makes a big difference, so you might want to wait on
adjusting gray balance until this step. Generally I don't worry about
the gray balance too much as the final profile will help this, the idea
is that the more neutral things are in a Raw state then the less work
there is for a profile to do.
Now that you have determined your ink restrictions you can proceed with
running the Linearization and the targets for the ICC profile.
If interested I can send you this EPS file off the list, it might be on
their Web site- not sure, and I don't have time to look.
David Wollmann.