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Forum: Display Calibration   04-12-2017, 07:46 AM
Replies: 4,550
Views: 271,778
Posted By Light Illusion
No problem at all - we are here to help. And...

No problem at all - we are here to help.
And I'd love to know what the cause of the issue is, especially as we have never seen this before - on madVR or eeColor.
(Probably should start a new MadVR...
Forum: Display Calibration   04-07-2017, 01:32 AM
Replies: 1,490
Views: 47,745
Posted By Light Illusion
The Sony offset value are not suitable for WRGB...

The Sony offset value are not suitable for WRGB OLED displays, such as LG's.
The Sony values, if applied as a new white point, not a probe offset, 'work' (our evaluations suggest they are still not...
Forum: Display Calibration   04-07-2017, 01:14 AM
Replies: 706
Views: 31,712
Posted By Light Illusion
Regarding Roll-Off, if you have a display that...

Regarding Roll-Off, if you have a display that has a peak luma capability that is higher than the mastering display - say 1300 nits, when the mastering was 1000 nits, you would not need to use any...
Forum: Display Calibration   04-07-2017, 12:39 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
LightSpace CMS uses an 'Anisometric' patch...

LightSpace CMS uses an 'Anisometric' patch sequence.
That is designed to deal as best is possible with issues such as image retention, as well as ABL/ASBL.
(Combined with setting patch size to the...
Forum: Display Calibration   04-06-2017, 01:01 PM
Replies: 4,550
Views: 271,778
Posted By Light Illusion
No, you would need a framestore to correct such...

No, you would need a framestore to correct such issues.
The only option is to reject the display as not being fit for purpose.

:mad:

Steve
Forum: Display Calibration   04-06-2017, 12:31 PM
Replies: 4,550
Views: 271,778
Posted By Light Illusion
No, a 3D LUT cannot alter screen uniformity. ...

No, a 3D LUT cannot alter screen uniformity.

Steve
Forum: Display Calibration   04-06-2017, 01:27 AM
Replies: 706
Views: 31,712
Posted By Light Illusion
Along with Flanders Scientific (FSI -...

Along with Flanders Scientific (FSI - manufacturers of professional grading displays and LUT boxes), and a number of our professional LightSpace CMS users, we have been looking at HDR TVs and methods...
Forum: Display Calibration   04-04-2017, 07:45 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
Ah yes, I get what you mean :cool: We have...

Ah yes, I get what you mean :cool:
We have quite a few users with the CR-300, especially for use with laser projection.
But a PR-730/5 would be great there too!
(I shudder at the price though......
Forum: Display Calibration   04-04-2017, 07:32 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
Yep - each to their own. It would be a very...

Yep - each to their own.
It would be a very boring world if we all did everything the same :D

But knowing the development (design and components) in both, the CR probes have nothing in common...
Forum: Display Calibration   04-04-2017, 12:51 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
We tend to recommend getting the best Tristimulus...

We tend to recommend getting the best Tristimulus you can first, and adding a Spectro later...
As above, the choice is really K10-A or CR-100.
You can't go wrong with either - with the major...
Forum: Display Calibration   04-04-2017, 12:44 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
I would look at the K10-A and CR-100 for...

I would look at the K10-A and CR-100 for Tristimulus probes, and Jeti 1501 and CR-250RH for Spectros.

Steve
Forum: Display Calibration   04-04-2017, 12:31 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
The guys are Colorimetry Reseach are...

The guys are Colorimetry Reseach are ex-PhotoResearch developers...
The CR-250RH is also sub <4nm, so worth looking at too.
(And they have very competitive pricing.)

Steve
Forum: Display Calibration   04-03-2017, 02:43 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
A 5nm Spectro is unlikely to be narrow enough for...

A 5nm Spectro is unlikely to be narrow enough for the OLED primaries.
You will really need something like a CR-300 with 2nm.

http://www.lightillusion.com/cr-300_probe.html

Steve
Forum: Display Calibration   03-29-2017, 01:57 AM
Replies: 1,490
Views: 47,745
Posted By Light Illusion
It's great to see how well LightSpace works on...

It's great to see how well LightSpace works on such tricky displays.
(Especially the additions of Anisometric and Drift Compensation - as that is exactly why we added them.)
Thanks for posting!
...
Forum: Display Calibration   03-25-2017, 09:54 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
If the gamut is lower than target, Fix Chroma...

If the gamut is lower than target, Fix Chroma will be the most accurate calibration.

Steve
Forum: Display Calibration   03-25-2017, 05:38 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
As per the User Guides, Fit Chroma should really...

As per the User Guides, Fit Chroma should really on be used on displays with very clean decoupling, and where the intent is to select PQ rather than calibration accuracy.
(Basically, on most home TV...
Forum: Display Calibration   03-25-2017, 05:18 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
There is only one correct result, and that is the...

There is only one correct result, and that is the one that generates the most perfect final calibration.
The reason for the different choices is explained in the User Guides, and basically depends...
Forum: Display Calibration   03-25-2017, 02:15 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
We have made made some major changes to the core...

We have made made some major changes to the core code within LS, and unfortunately missed a couple of bugs that crept in with the changes... We think we have them all now, and will release a new...
Forum: Display Calibration   03-23-2017, 02:08 PM
Replies: 864
Views: 30,762
Posted By Light Illusion
The 0.3067-0.3180 coordinates were derived for...

The 0.3067-0.3180 coordinates were derived for Sony RGB OLEDs, and while they may presently look 'ok' for SillySally, I think he will find they actually do not match well, and will have a magenta...
Forum: High Dynamic Range (HDR) & Wide Color Gamut (WCG)   03-23-2017, 12:51 PM
Replies: 98
Views: 3,707
Posted By Light Illusion
Dolby projection based HDR is 108 nits peak... ...

Dolby projection based HDR is 108 nits peak...

Steve
Forum: Display Calibration   03-22-2017, 03:37 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
I made a small error... The values should...

I made a small error...
The values should actually be 34,34,32,32.

I've added the actual calculation for any patch size (in screen area) to the various user guides:...
Forum: Display Calibration   03-22-2017, 01:15 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
The definition of Top or Bottom emission is in...

The definition of Top or Bottom emission is in the design of the display.
See 'Device architectures' here: https://en.wikipedia.org/wiki/OLED

It seems LG are most likely Top emission:...
Forum: Display Calibration   03-21-2017, 08:22 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
A final post, with the latest from Bram at FSI......

A final post, with the latest from Bram at FSI...

"We’ve posted an updated version (of the PDF) to our site that replaces that graphics text with 0.xxxx, 0.xxxx so people don’t blindly copy that...
Forum: Display Calibration   03-21-2017, 08:13 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
35, 35, 30, 30 should give a 10% window. ...

35, 35, 30, 30 should give a 10% window.
(Depending on if you are looking for 10% area, or 10% width/height, or even 10% diagonal...)



Steve
Forum: Display Calibration   03-21-2017, 02:47 AM
Replies: 864
Views: 30,762
Posted By Light Illusion
The approach is what FSI use, based on their own...

The approach is what FSI use, based on their own white paper.
I really am struggling to see how you fail to understand this?

Sorry!

You cannot calculate an offset for displays with Metamerism...
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