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Forum: OLED Technology and Flat Panels General   11-21-2014, 03:41 AM
Replies: 6,976
Views: 315,554
Posted By TomHuffman
As far as I can tell, there is nothing here that...

As far as I can tell, there is nothing here that is fixable. It is a design flaw. The best you can do is to find the highest brightness setting that still provides a good contrast ratio. However, as...
Forum: Display Calibration   11-17-2014, 05:47 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
Working on it.

Working on it.
Forum: Display Calibration   11-15-2014, 06:40 PM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
The Windows 8 Thing

The reason that there's been so much controversy about Windows 8/8.1 really has nothing to do with how well specific applications--such as ChromaPure--run under it. They generally run fine. The...
Forum: Display Calibration   11-13-2014, 11:56 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
The reason this was changed is that, previously,...

The reason this was changed is that, previously, the 75% of Rec. 709 gamut was only available in the Color Management module. Thus, we had to have a gamut selector in that module. When we made that...
Forum: Display Calibration   11-13-2014, 11:50 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
The reason you've seen no Mac version is that...

The reason you've seen no Mac version is that there are no cross-platform development tools. We would have to develop two entirely separate applications.

However, your question is very timely...
Forum: Display Calibration   11-13-2014, 06:24 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
We are talking about controls on a Samsung CMS....

We are talking about controls on a Samsung CMS. However, the Color Management module with RGB color space selected is what you would use when adjusting.
Forum: Display Calibration   11-11-2014, 02:41 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
Yes.

Yes.
Forum: Display Calibration   11-06-2014, 08:39 PM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
We have a beta available now for XP users. ...

We have a beta available now for XP users.
http://www.chromapure.com/distribute/beta/standard/chromapure.zip
Forum: Display Calibration   11-06-2014, 04:14 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
Do you understand that setting the contrast level...

Do you understand that setting the contrast level to get perfect white balance at 109% may very well lead to a lower contrast setting than would be desirable for the video range where there is actual...
Forum: Display Calibration   11-06-2014, 03:14 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
I don't think so. "Dynamic Range" is the...

I don't think so. "Dynamic Range" is the difference between video black and video white. The position of video black has very little to do with setting the contrast control (It is tangentially...
Forum: Display Calibration   11-05-2014, 06:47 PM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
Then this is mostly just about having the desired...

Then this is mostly just about having the desired test patterns. The White Balance module can be measure any video level and the Gamma module, with minor modification, would measure both white...
Forum: Display Calibration   11-04-2014, 08:23 PM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
Is this for reporting purposes or for real-time...

Is this for reporting purposes or for real-time measurement and adjustment?
Forum: Display Calibration   11-04-2014, 01:50 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
You need to be more specific about what "the...

You need to be more specific about what "the contrast setting" refers to.
Forum: Display Calibration   11-02-2014, 04:31 AM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
If we turned off resetting the advanced gamut,...

If we turned off resetting the advanced gamut, adv. auto-cal wouldn't work anymore. If you are not getting satisfactory results from the grayscale auto-cal, then I'd like to see some data on this....
Forum: Display Calibration   10-28-2014, 11:12 PM
Replies: 2
Views: 307
Posted By TomHuffman
Without having the colorimetric data also, your...

Without having the colorimetric data also, your question is impossible to answer.
Forum: Display Calibration   10-28-2014, 05:43 AM
Replies: 70
Views: 4,123
Posted By TomHuffman
Let me clarify. I haven't tried it with OLED...

Let me clarify. I haven't tried it with OLED Light set to its maximum, but since I've seen no difference in white balance between the OSD being on (full contrast) and being off, I infer that full...
Forum: Display Calibration   10-27-2014, 11:24 PM
Replies: 70
Views: 4,123
Posted By TomHuffman
It would seem so.

It would seem so.
Forum: OLED Technology and Flat Panels General   10-27-2014, 09:07 PM
Replies: 6,976
Views: 315,554
Posted By TomHuffman
I tried this and the OLED Light does have an...

I tried this and the OLED Light does have an effect on the brightness setting. So with OLED Light set to 50 I was able to set Brightness at 52. The problem is that this doesn't fix anything. Shadow...
Forum: Display Calibration   10-27-2014, 08:58 PM
Replies: 70
Views: 4,123
Posted By TomHuffman
No, I don't. I tried to fix this using the...

No, I don't. I tried to fix this using the Lumagen's 5% Luma control with no success. Even a 17^3 LUT only goes down to 6.25%. All the trouble is below 5%.

APL doesn't seem to matter much with...
Forum: Display Calibration   10-27-2014, 02:18 PM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
It has something to do with .Net. This only...

It has something to do with .Net. This only occurs for some people when new versions are released. Repairing .Net and reinstalling fixes the problem. I can't reproduce the problem here, so I can't be...
Forum: Display Calibration   10-27-2014, 12:44 PM
Replies: 5,840
Views: 470,415
Posted By TomHuffman
We have used 12 pt grayscale for several releases...

We have used 12 pt grayscale for several releases now. This is so users can go back and manually adjust the 5% point if this is needed. This isn't the source of your problem. My guess is that its...
Forum: OLED Technology and Flat Panels General   10-26-2014, 09:11 PM
Replies: 6,976
Views: 315,554
Posted By TomHuffman
Black Level Issues

I found another problem with the 55EA9800 that is at least as serious as the poor white field uniformity.

The default brightness setting of 50 crushes black quite a bit. The technically correct...
Forum: Display Calibration   10-26-2014, 09:05 PM
Replies: 70
Views: 4,123
Posted By TomHuffman
I just measured black levels with different...

I just measured black levels with different brightness settings. Although 58 is the ideal setting, this raises the black level substantially to about 0.03 nits. Assuming 120 nits at 100% video that's...
Forum: Display Calibration   10-26-2014, 08:57 PM
Replies: 70
Views: 4,123
Posted By TomHuffman
Ok, I finally understand what you are saying. I...

Ok, I finally understand what you are saying. I originally thought that you meant that the OSD literally caused the contrast control to read 100. What in fact you are saying is that the OSD raises...
Forum: Display Calibration   10-26-2014, 06:34 PM
Replies: 70
Views: 4,123
Posted By TomHuffman
There is only one correct setting for black...

There is only one correct setting for black (unlike white level, about which there is some wiggle room). Set black level to the lowest brightness setting possible at which blacker-than-black (digital...
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