Official Sharp AQUOS LC-60LE847U & LC-70LE847U Owners Thread - Page 90 - AVS | Home Theater Discussions And Reviews
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post #2671 of 2675 Old Yesterday, 04:38 PM
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Originally Posted by greeno View Post
will do when I get home.
Greeno (and anyone else that may have the info I'm looking for), I'd like to compare my set's saturation tracking to others that have calibrated their sets. Have you posted any CIE plots which contain saturation sweeps of primaries and secondaries?


My set produces some very non-linear saturation sweeps. Green, cyan, and magenta are the worst offenders. I'll post up an image when I can get to the computer they're on.


If anyone's aware of how to eliminate or minimize this, I'm all ears (or eyes, rather).

Vizio M652i-B2....................HCFR 3.1.6
Vizio E600i-B3.....................i1 Display Pro
Sharp LC-70C8470U............ControlCAL Elite X5 Edition v2
Onkyo TX-SR606.................AVSHD-709
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post #2672 of 2675 Old Yesterday, 05:26 PM
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no i've not measured saturation sweeps. is that on a standard test disc, or are you using one of the specialty ones?
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post #2673 of 2675 Old Today, 09:54 AM
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Originally Posted by greeno View Post
no i've not measured saturation sweeps. is that on a standard test disc, or are you using one of the specialty ones?
I'm using the built in pattern generator in HCFR but the AVSHD709 disk has them for 0, 25, 50, and 100%. The advantage of the built in generator is that you can set 8 or 10 points along each axis and get a good image of saturation tracking.

Vizio M652i-B2....................HCFR 3.1.6
Vizio E600i-B3.....................i1 Display Pro
Sharp LC-70C8470U............ControlCAL Elite X5 Edition v2
Onkyo TX-SR606.................AVSHD-709
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post #2674 of 2675 Unread Today, 11:20 AM
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Here are a couple of examples showing the issue with saturation tracking. The first image illustrates the non-linear sat-tracking when a calibration based on accurate primary/secondary points. Clearly, the pri/sec points are not particularly accurate, but the result would be much the same if they were dialed in. I've marked the Color Check points and their respective targets to show how far off these points are due to the tracking issue.


The second image is my best attempt, thus far, to calibrate based on lowest average dE on Color Check patterns. As is evident, green, cyan, and magenta are the worst offenders. Magenta is manageable, green causes some undesirable errors, but cyan results in huge errors.


I would like to see the results of what others have achieved in terms of saturation tracking and color check accuracy. If anyone has any tips on how to correct this, I'd very much appreciate it.


This cal was done with standard gamut...my next step is to use expanded gamut.
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Vizio M652i-B2....................HCFR 3.1.6
Vizio E600i-B3.....................i1 Display Pro
Sharp LC-70C8470U............ControlCAL Elite X5 Edition v2
Onkyo TX-SR606.................AVSHD-709
PS-3
Homegrown HTPC
Basstrix is online now  
post #2675 of 2675 Unread Today, 11:38 AM
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For comparison, here are a couple of caps from 2 different Vizio models. While these have much better spatial (x-y) tracking, the distribution still lacks linearity. In my limited experience, spatial tracking errors are much more difficult to compensate for compared to distribution errors.
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Vizio M652i-B2....................HCFR 3.1.6
Vizio E600i-B3.....................i1 Display Pro
Sharp LC-70C8470U............ControlCAL Elite X5 Edition v2
Onkyo TX-SR606.................AVSHD-709
PS-3
Homegrown HTPC
Basstrix is online now  
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