AVS Special Member
Join Date: Aug 2002
Location: Toronto area, Canada
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The other day I asked about the "Calibrate meter" button's request for a "white patch", and what it should be. Throughout the thread 30-50% was mentioned (I had been using 50%), and 80% was suggested. I compared using the 50% and the 80% cal patches in two consecutive 10-point gray scale runs and the differences were extremely tivial as to the numbers/graphs, probably within the meter's inherent repeatability, so I highly doubt there'd be any visual diffs.
Now I need something else clarified. This is for the retail i1 Display Pro (i1D3), IOW not calibrated against a standard or at least a much better meter. There are two apparently conflicting pieces of info in this thread.
1. The i1D3 is "more accurate" with either a color correction matrix or a spectral correction .ccss file. One or the other should be used, but not both.
2. The i1 Display Pros are each individually calibrated at the factory, and the spectral characteristic corrections are programmed into their firmware. (IIRC this was a much more recent statement about the current production.)
You can probably see my confusion: if point 2. is correct, then point 1. seems no longer appropriate, at least re current production, since the meter is already spectrally corrected and you don't want to "do it twice" per the warning in 1. Am I misunderstanding what the correction methods are doing? Thanks.
I would like to make sure I'm at least using the meter correctly before I post any results or ask any more even more boring questions...