The Official ChromaPure thread - Page 191 - AVS Forum
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post #5701 of 5706 Old Today, 12:28 AM
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Originally Posted by simonk83 View Post
Ok, so here are some example settings from the 2point menu:

White balance submenu:
R-Offset: 0
G-Offset: -1
B-Offset: -3
R-Gain: -2
G-Gain: -1
B-Gain: +1


The guide mentions to tune the HighEnd using the 80% slide, and the LowEnd using the 20% slide. In this instance, is Gain considered HighEnd and Offset considered LowEnd?
yes that is correct

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post #5702 of 5706 Old Today, 12:59 AM
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That's right, 80% high-end, 20% low. Adjust the two levels in the white balance module, and go back and forth a few times to check that the RGB values haven't strayed, because the two levels are interactive.


Edit: Oops, Mr. Fraser answered you.

Last edited by Pres2play; Today at 01:05 AM.
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post #5703 of 5706 Old Today, 01:59 AM
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Originally Posted by Gordon Fraser View Post
yes that is correct
Is it correct to use both - & + adjustments on the Gain?
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post #5704 of 5706 Old Today, 02:25 AM
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Awesome, thanks to you both
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post #5705 of 5706 Old Today, 02:42 AM
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Originally Posted by magicj1 View Post
Is it correct to use both - & + adjustments on the Gain?
yes i dont see that as being an issue...however, i tend to try to avoid adjusting G. As R G and B are relative to each other you should not actually need to adjust G. The G component is large so making adjustments to it on some displays can affect your contrast and brightness settings. If your adjustments get you where you need to be with no "consequences" elsewhere then go for it....
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post #5706 of 5706 Old Today, 11:06 AM
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Originally Posted by simonk83 View Post
Awesome.

Now, another stupid (the first of many no doubt) question The guide mentions:

TIP: Some displays will offer the ability to adjust grayscale at 10 points, instead of simply the standard RGB HighEnd and RGB LowEnd. If you have such a display, then use the 10-point system.

The Samsungs do indeed have a 10 pt White Balance setting (10% through to 100%), so presumably instead of using the 80% and 20% slides on the calibration disc, I should use all of them (10% through to 100%) and adjust each setting accordingly?


Aside from having a 10pt White Balance setting, the TV also has a separate White Balance setting. What do I do with that?



Sorry, this is probably really obvious but I want to make sure I get it right
hello Simon,
I have a Samsung F8000, before I had an ES8000. F and ES are very similar, so maybe my experience might translate to your 9000 series.

Switch off all special modes (e.g. dynamic contrast etc).

First step: adjust two point white balance. Adjust high and low while looking at the full greyscale all the time, not just 80% and 20%. At 80% and 20%, get sum RGB corrections (ref=25?) approx. 0 at 80% and at 20%. So not all corrections e.g. negative. Or easier, leave green at 25 and only adjust R and B.My experience: use movie mode warm2.

Second step: contrast adjustment. Target: max contrast. Standard setting in movie mode is conservative in my experience. Increase contrast setting, readjust 2point white balance, until dE increase at 100% up to maybe dE=2.

Third step: brightness setting. Requires measurements at 0%, 1% , 2% IRE settings. Target: lowest amplitude measurement at 0% which gives a clear difference to measurement at 1%. On my F and ES panel this is setting 45. No dimming takes place at 45. Dimming at 46. Both are OK, depends on your preference. With dimming, clouding becomes less visible, but blacks might look crushed. And when this is done, do 2point again.

Finally, do 10 point.

Anyone with comments to that? Buzzard767, you have a F series. Can you buzz in?

Last edited by turboman123; Today at 11:12 AM.
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