Originally Posted by Make73
I meant without any correction, you can find such of comments also from this thread.
I calibrated whitebalance without matrix and with matrix and switching between two modes there you can notice that fine red tint at grayscale without any correction.
Who said so?
If you have reference meter and all other things are correct (like which patterns are best for your display, with plasma you can get different result with different patterns) then you should be fine.
I´m just rookie but already noticed in few years that caibration is not just like on/off switch, there´s so much things what affects to result.
You´re from UK, David from HDTVtest and Stephen from AVForums get different results with same set and same tools and those guys are professionals.
I remember that there was possibility to use matrix and choose plasma for display type (spectral sample).
At least I made correction file for Display 2 for using HCFR 2 when I sold that.
You can examine those matrixes which are posted here and especially which are delivered with i1 Diplay Pro meter, so customer paid for calibrating it against reference meter. You can notice that most of them corrects red reading of i1D3.
Also it´s good to remember that there´s different revisions of same meter, there could be and probably is differences. Using some others matrix may result to worse accuracy than without it.
That all is for DIY calibrations, if you take payment for calibration you should also have tools and knowledge like pro.
I am a rookie too. And keen to learn more. Diyer, not a Pro - payment wise :-)
My understanding is that the Spectral Files compensate the "already calibrated @xrite" i1D3Pro for the technology display it is being used on. And that should be enough.
If you are judging errors by eye, eg, on tints, then the calibration methods employed did not get you to REC709. Or your eyes are seeing things wrong. Using offsets, and then judging by eye, to say the measurements are better, does not make sense to me.
These are my opinions by the way, so open to others greater experience to change my mind.
With regards using an i1Pro to profile other sensors (LT2 or i1D3 Pro), the data in the link you posted yesterday showed the i1Pro to be far from perfect. I understand this device requires frequent calibration (annually) and during test runs.
I am merely suggesting that with a capable measuring system, these variables of environment, calibrator, meter etc should not affect the end result (outside of the acceptable tolerances).
Ref:- "David from HDTVtest and Stephen from AVForums get different results with same set and same tools and those guys are professionals."
I am not familiar with the exact tests you refer to - but when you say "same set and tools" - exactly the same units, or just same model type? Done at similar times, same environment, same software tools and methods deployed? And are the errors outside of the target (Delta 3). I suspect the results are well within this.
I have a Pioneer plasma, and it may not suffer the same way with window sizes as more modern units (with ABL). I am reading the threads on this forum that mention this to take the best advice, before seeing for myself.
Edited by wl1 - 5/9/13 at 1:35am