Originally Posted by zoyd
That's because the free measures table is not meant for real-time targeting. The program will only know for sure what your target is when on the grayscale or primaries table.
Hi Zoyd, thanks for clarifying that. Is there any utility for the Delta E entry for Free Measure table in that case? Also, why is the graphical dE value different from the one in the table and do either matter? Perhaps it might be good to consider removing them if they serve no purpose as they are a bit confusing.
I also have another issue that is really bothering/confusing me. I managed to get all my primaries and secondaries to match up really well at 100% saturation. However, I noticed that all the colors are under saturated as per the CIE chart shown in HCFR. What I don't understand is that the xy target co-ordinates for 75% saturation in HCFR do not seem to match up with stereomandan's Excel file and his excellent guide on targeting 75% saturation for calibration here
. For example, as per the CIE chart in HCFR, 75% saturation red should have xy co-ordinates of 0.566
,0.330. However, Tom's excel file and posts on his thread indicate that 75% saturation red should have co-ordinates of 0.558
, 0.330. From looking at his thread, it looks like Tom Huffman also vetted the Excel sheet/calcs. In my case, my 25, 50 and 75% saturation readings line up quite well against the targets in the Excel sheet but are quite off in comparison to the targets in HCFR.
Could you help me understand the source of this discrepancy?