Re: Epson canned profiles
Re: Epson canned profiles
- Subject: Re: Epson canned profiles
- From: ben <email@hidden>
- Date: Mon, 16 Apr 2018 13:29:38 -0700
On Apr 16, 2018, at 12:59 PM, Andrew Rodney <email@hidden> wrote:
> On Apr 16, 2018, at 12:03 PM, ben <email@hidden
> <mailto:email@hidden>> wrote:
>
>> What, exactly, in D50 L*a*b*, is the darkest color the printer generates
>> with the most economical setting? And what does it generate with the highest
>> quality setting?
>
> According to BableColor CT&A it's dE 2000 of 0.85 and here are the two
> measurement values from patch 03 (451), RGB 0/0/0.
> Lab values extracted from BabelColor PatchTool 6.0 (yup, new version; neat!):
>
> 7.2000 1.1600 4.5100
>
> 6.2000 1.1800 4.1600
FINALLY! Thank you!
(Was that _really_ so difficult?)
So first...those are quite impressive numbers. Kudos to Epson.
It seems like they're saving some ink, but not much, in the economy mode. I'd
be curious to compare total volumetric ink usage (and thus cost-per-print)
between the two -- but that's a topic for a different discussion.
From L* 7.2 to 6.2 is enough of a difference that it'll matter in a critical
setting, but not enough to matter for the overwhelming majority of "good
enough" prints -- which was exactly what I was describing as the most plausible
explanation I could come up with consistent with your claims.
I think, were I tasked with crafting a single profile for both, I'd throw
everything at the high quality mode, on the assumption that those for whom it
most matters would appreciate that most, and those for whom "good enough" is
good enough won't notice the difference between an average of the two and one
targeted to the spare-no-expenses mode. The end user would perceive it as
maximal shadow clarity and density in expensive mode and a very little
comparative muddiness in ink-saving mode. With a profile made from an average
of the values, the two modes will look very much like each other, but you're
leaving some quality on the table for the expensive mode.
The next point that comes to mind is that it's not all that far off the neutral
axis -- measurably warm, but not so warm that many would notice. But that
_does_ offer the hope that the darkest the printer can get and stay on the
neutral axis is still awfully dark. Which would make a lot of the hype
justifiable. A lot depends on the shape of the bottom of the gamut, but just
getting those two trivial numbers out of you was so much trouble I wouldn't
even dream of asking for anything more complicated....
Cheers,
b&
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