[argyllcms] Re: dispcal VDT DE 2K measurement discrepancy

  • From: Vallo Kallaste <kalts@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 8 Jan 2015 14:34:36 +0200

On Sun, Dec 21, 2014 at 12:52:05PM -0500, Roger Breton <graxx@xxxxxxxxxxxx> 

> Can you wait 30 minutes before your calibrate? My brand of monitor is
surprisingly stable over time.
> Just saying.

Yes, but initial thermal stabilization is not relevant in this case. For some
reason my monitor slowly drifts with a period of around 30-45 minutes and I
guess it's related to backlight circuitry thermal properties. Or something like

But this is all besides the point. I think the point for me is that consumer
grade instruments are just what they are. No need to sweat over e.g. dispcal
readings fluctuating over some (for really unknown, instrument dependent)
range. Drifting monitor is like a cherry on cake on this issue :)

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