Originally Posted by WiFi-Spy
The C6 HDR2000 has a laser phosphor EDR/meter mode made with a Minolta CS2000.
C6HDR2000 which is a meter which with 3x higher cost from an OEM i1Display PRO and 4x higher from a Retail i1Display PRO where these tables are working only with paid license of CalMAN (and you can't use these tables with free license or free open source calibration software), it has 3 laser projector EDR (spectral) tables created in 2017 (CalMAN 2017 5.8.1 RC1 - Released @ 07 July 2017):
Projector (Laser Phosphor)
Projector (Laser Phosphor) - Panasonic RZ12K
Projector (Laser Phosphor) - Panasonic RZ970
The reason why it has 3 tables for lazer projectors (samples taken @ 2017) is because each laser projector has different spectral curves, so between diff. companies and models, there differences. (for that reason you see 2 tables for Panasonic projectors, one is 1x chip DLP, the other 3x chip DLP)
Also when you are using EDR spectral correction files for the i1Display PRO, you are not fixing the unit-per-unit variations of the meter, so even if a company will add to the meter an EDR spectral table using an Optoma P1 spectral sample, if you measure with 10x C6HDR2000/i1Display PRO's you will find deviations diff. per each meter.
This is happening because the EDR spectral correction tables are combined with factory calibration table to provide you the total correction offset, so since X-Rite manufacture the meters with +-0.004 xy and +-4% Y deviation specs (or higher), it can happen randomly one meter to be better from the other, but you can't expect more for that money, X-Rite has done the best job to offer that such good meter to such low price for all people to be able to invest for calibration.
As you can see below, X-Rite don't recommend for anyone to use these specs (for that reason there no specs also to any X-Rite page or PDF) because as the meters are not shipped individually one-by-one certified.... as its a low cost meter, the deviations to end product will be larger from these. So even if you use the best spectral EDR, this will not fix these meter tolerances from meter-to-meter variations.
The exact some tolerances have all the custom branded OEM meters also, like the C6-HDR2000 meters, since only X-Rite can characterize the sensor's spectral sensitivities, we have discussed about this here: https://www.avsforum.com/forum/139-d...l#post58386280
When you create meter correction table based to your own projector model, it will count and correct your colorimeter (unit-per-unit variations) which are not corrected when you are using EDR tables (which based to the meter factory calibration)....after after some years when the meter will start drift, your deviations will be larger when you are using EDR, while if you create a new meter correction table again (4-color matrix method) you will re-correct and include to your generated correction even natural aging drifting of your colorimeter.