Originally Posted by nw06
As you can see, GS readings seem to line up fairly
closely between the two meters, but color readings are markedly different. There is an especially big difference with blue. Given the readings from the brand new i1Display Pro are more what you would expect from a VT60 (i.e. good), I am now concerned that my i1PRO is a dud, and should not be trusted (secondhand and last calibrated in 2008 according to i1Diagnostics).
Hmmm, should I just go with the i1PRO, or does it look suspicious enough to just go with the i1Dispay meter on it's own?
I have the same problem with my 65VT50 using Calman 5, i1pro2 and i1display3pro.
However, when I use Chromapure, this very low blue saturation is non existent. Blue calibrates out just fine without maxing out the display's control.
I thought maybe Calman wasn't calling up the right pattern on my signal generator, an Accupel 5000 so I used the signal generator in a manual mode calling up patterns independent of Calman. The problem still exist.
Oh, I failed to mention that a calibrator with a Klein 10 using Calman 3 also had this problem on this display last week.
And as I recall, back last November when I tried out Calman 4....well it had the same issue.
The only possibility that I see is with the Calman 5 software there was an installation note about being sure that you're using certain video drivers. On the laptop that I have Calman 5 loaded, newer video drivers weren't available. I can't help but wonder if that has anything to do with it as everything else seems to work well. I don't know if the pro calibrator has done about video drivers but his laptop appeared new.
I like Calman 5 but what use is it if it's not reporting blue saturation correctly. That's kind of harsh but it doesn't really look like it's working right. Now one might want to make the argument that it's Chromapure that's not reporting it correctly, but why would there be this many instances of reading blue saturation so low with calman and not with chromapure?????
Do I hear Sotti walking down the hall?