The two filter method (as Ilford calls it) is using the M and Y channels
in a color head to vary contrast without varying exposure times. The
method is outlined in the datasheet of every pack of Ilford paper sold,
and probably other manufacturers as well.
I've played with it a bit...it doesn't seem to work very well for me.
Split filtration involves using different contrast filtrations during
the same exposure, and comes in 2 flavors: Split filtering the whole
print (global split grading?), or split filtering parts of it (local
split grading?). An example of the first would be exposing a neg for 8
secs at grade 4 and 2 secs at grade 0. An example of the second would be
10 seconds at grade 2, then burning in the sky at grade 5.
Mike you're saying the first flavor of split grading is crap. You're not
saying the same thing about localized split grading are you?
I seem to have had success with both methods. Maybe the global split
grading method doesn't give you a contrast range unavailable by a single
filtration, but could it be an easier way to get the exposure you're
looking for?
Anyway, lately I've used this method to get prints I'm very happy with.
Any thoughts?
tv
Aaron Reynolds wrote:
>
> Mike Johnston wrote:
> >
> > Shel wrote:
> >
> > > Could someone explain what the reason is to use the two filter
> > > method, and how it's an improvement over the single filter method?
> >
> > There is none, and it's not. (It 's called split-filter printing.)
>
> Are we not talking about using two dials at a time on a colour head for
> contrast control as opposed to one? That's what I thought Shel was
> talking about.
>
> -Aaron
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