[argyllcms] Re: Display calibration - Hardware question

  • From: János, Tóth F. <janos666@xxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Mon, 14 Jul 2014 04:29:02 +0200

I think I can use virtually any kind of cable (ribbon or not) which
fits inside the case and isn't too prone to flexing. A cable used for
digital data transfer shouldn't effect the measurement
accuracy/precision. And I can solder it on, so it doesn't need to fit
into the connectors.

The i1Pro2 comes for 3 times the price of a CMP.
Do you think it's worth the price difference?
I ask both in terms of general use (including reflective measurements
as well) and for display measuring (colorimeter profiling) only.
I liked to experiment with printer profiling and measurement based
camera profiling, even though I never really achieved great results
(especial with cameras) and thus I rarely done similar things (only a
few printer profiles here and there over the years).

I ask since you got to play with a Jeti spectro as well as the iPro
1/2 and the i1d3.

1: The better self-calibration/self-check capabilities sound nice.
Knowing that the device would report if it drifted too much due to
aging or dust/damage would make me more comfortable on an everyday
basis. However, I am not sure if this actually works as intended
and/or how I imagine it. And there are cheaper ways to check this,
like comparing the readings with other similar instruments from other
people you know (not every days but after every few months or so...).

2: Are iPro2's tend to be (I know they are not all the same) any more
accurate (in an absolute manner) in general and/or on displays than
the CMP's?
I saw some reports about "not so accurate" CMPs. Most of the experts
always preferred the old iPro.
And for that matter, unlike the i1Pro2, the CMP doesn't come with any
kind of factory certificate (and it also can't be reevaluated...).

3: The CMP is strictly UV-cut.
I am not sure if some (current or near-future generation) display
devices might emit some UV light (I know some of them emit significant
amount or IR light). In any case, I never liked the idea of having
this filter in general.

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