Digital BW, The Print

> - is IJC/OPM really a viable solution for somebody without a 
> densitometer

Well, my standard answer is that you can get by, but don't expect the
accuracy of the meter. I should try the two methods side by side before
I pass judgment - and I haven't. I will do it for this new PC version in the
near future and post my findings.




> - How long do you think it could take to build a correct UC 8 ink 
> profile (I own an epson 4000) from existing one assuming you've fully 
> read the manuals and have basic knowledge on curves ? few hours ? 
> more ?


I can only answer based on my 2200. In any case the 8th channel
is not being used since it has the second black. If you already have
a profile (and there are plenty for the 7-ink UC) it should be a matter
of an hour or less depending on what you are trying to do.

If you are just linearizing (which should easily adapt a 2200 profile
to the 4000) it should be under a half hour. If you are tweaking the
coloration (toning) it could be a few hours until you get something
you personally like. But that's not so much a function of the software
as it is a creative trial and error to see what works for the look you want.

The part that takes the longest is the tweaking of curves. But because
of the linearization engine, it can be pretty forgiving. You want to
bring it in so that it plots "close enough" and then lin takes over.
The major decisions that are made in the curves are things like
when should the next ink come in and what to do not to overload
the paper with ink and loose dmax or definition along the scale.
Or, how to use the color inks to tone the scale, etc.
If you are new, and starting from scratch,  those things can take 
a day or two to become familiar. But that should never be the
starting point for anyone new. Any of the existing profiles
will have these issues resolved - and that should be where you
start.

Still, I'd allow time to read the manual, play a little with the controls,
and then go to a real profile. It could be a day if you think of it
that way. On the other hand, once you get experienced, making
moves on a profile and repurposing it could be a matter of a
few minutes.


Antonis