AVS Forum Special Member
Join Date: Jan 2003
Location: Portland, Oregon, USA
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Again good info, especially the D3 verses the K10. I did not expect there to be such good correlation to a K10 using a D3 class probe.
Also I agree that there is not a lot of difference in your results with the Radiance 9^3 and Tom's results. So, chalk it up to differences in using a different year's standard, or probe, or projector, or even the environment, or phase of the moon.
So, if I may, my conclusion on all this is:
1) The Radiance 5x5x5 3D LUT will provide good calibration results, but there is room for visible improvement, especially on displays and projectors with a non-linear response. For a reasonably linear display/projector, for many people, 5x5x5 is plenty.
2) The Radiance 9x9x9 provides excellent calibration results, and while there is room for "machine measurable improvement," there may be no "human visible improvement" to be had going to a larger 3D LUT, at least with all but the most problematic nonlinear displays/projectors.
3) The upcoming Radiance 21XX 17x17x17 is likely overkill, but will provide machine measurable improvement over the 9x9x9. For those who need to be certain they have the best possible results the 17x17x17 will provide them.
BTW: I believe we should have the Radiance 21XX 17x17x17 3D LUT initial release about the end of July. I look forward to everyone's take on this once it is available.
Thanks to everyone taking part in this discussion. I enjoy learning new things and I certainly have reading the various threads on calibration here on AVS.