Re: i1Pro and monitors
Re: i1Pro and monitors
- Subject: Re: i1Pro and monitors
- From: Graeme Gill via colorsync-users <email@hidden>
- Date: Tue, 17 Dec 2019 13:26:06 +1100
Wire ~ via colorsync-users wrote:
> Why the word of caution? Is there a mismatch between low-cost colorimeters
> and current display tech?
Because the story that keeps being told (and the one
that I was responding to) is that Colorimeters have better
sensitivity than Spectrometers. And it isn't true with the
sorts of Colorimeters that most people own.
> There's an aspect of this stuff which for graphics customers (users)
> borders on the absurd. What users want are displays with well-defined
> characteristics and performance. But for some reason, this isn't practical,
> like CRT TVs use physics and circuits that drift and the whole analog thing
> is super smooshy from a thermodynamic POV.
They never will have well-defined characteristics when price is the
bottom line.
> So what the user must discover he needs is to specifically measure and
> characterize his display using colorimeter tech!.But this also isn't
> practical, for other reasons, such as the colorimeters themselves are
> smooshy.
Some less so than others.
> So what is it about today's displays that makes them so variant that speed
> is required to calibrate? Sure time is money for some people, like say
> professional calibrators. But if you were in this business, why would you
> want reliable displays? They'll put you out of business!
Many TV's change their responses quite markedly with time, due to various
power saving and display saving technologies. Plasma was bad, OLED is
even worse in this respect.
Some people like to characterize their display with full grids too -
i.e. 5000 measurements or more. (TV calibrators can be kind of crazy
in that regard.)
> If you are just a plain user, is a commodities colorimeter like the new
> i1d3 a sufficiently good instrument to deal with typical quality displays?
Mostly. But it still lacks the low end sensitivity to usefully
measure an OLED black.
> Why can't the industry just make a reliable display and leave the
> colorimeter stuff up to the engineers that design these things?
See above. Mass production of a consistent product makes it
not the lowest possible cost. And low cost is what the majority
of customers most value. Features such as wide gamut and HDR have become
a thing, meaning that there is more variations in this aspect
than there ever was before. The other thing is that each model is different,
and you can't rely on the manufacturer to characterize it correctly.
(They can't even code a legal EDID most of the time!)
> I'm not really complaining. But the topic often feels a bit circular.
Only because people want the impossible.
Graeme Gill.
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