Originally Posted by coderguy
I didn't say in a specific order, as this will vary depending on the device sometimes
The only reason someone would calibrate color (lets use an appropriate term like CMS) before adjusting the grayscale would be if CMS adjustments had zero effect on the grayscale and
grayscale adjustment had zero effect on CMS.
, but I was actually repeating something Tom Huffman said and that many of us know to be true... He did in fact say if the saturation points are off far enough, it will mess up the calibration badly, take it up with another expert rather than me.
I'm taking it up with you since you chose to use someone else's words, without fully understanding what you read, and applied them to this thread.
We are talking about a relatively small blue error and the red and green looking pretty flat, I'm not quite sure I'd call that a "poor" grayscale, sure it could have been better, but blue is the least of my concerns compared to red or green.
If you think the grayscale on this particular LG display, post calibration, that has dEuv errors above 3.5 from 50-100% stimuli is small, you either have laxed calibration standards, do not know the capabilities of the display and/or don't know the threasholds for when errors are visible.
There are a lot of devices that do not track linearly across the gamut (again according to Huffman). If I am misunderstanding or am wrong, that is fine, you can simply correct me and then we can move on without pulling out a "science card", but again I'm going by someone elses opinion not my own
I've already corrected you. I would also advise you not to post what you do not fully understand (and some how have classified as "opinion").
I meant a chart that doesn't show saturation tracking, you're only looking at how the device produces the gamut at one saturation level, not the entire levels
You might want to add a few additional words to your vocabulary. Stimuli level, luminance and hue would need to be included when discussing the typical 1931 CIE chart.... which of course is not the ideal chart to use. Especially when one starts talking about "perception".
Hmm, as far as by eye, yah I am pretty sure as I used to do A/B testing of projectors very OCD for many years. With projectors (especially older ones), we had to make crazy huge concessions in calibrating sometimes, and that's why I did the A/B so many times trying to live with my "magic concessions". I am sure that a tiny blue error in the gray scale is no huge deal, there are more important issues. I am not saying it is invisible in all cases, but it surely isn't the worst thing. Actually on some projectors I have owned that have BUGGY CMS's (which is practically the majority), there are NON-symbiotic relationships with gray scale and the gamut that affect each other in ways they should not. I generally do gray-scale, gamut, gray-scale, gamut, done, because of the buggy way many of these projectors calibrate. No ideas on TV's, never calibrate them hardly ever.
Your exculsive experience with projectors does not hold any bering on this LG CCFL LCD.
To say there is one exact order doesn't make sense to me since it depends on how buggy the devices' calibration controls are in what order you have to do stuff
There actually is a recommended order for calibration. Only
in rare and
unique instances should one have to deviate from the recommended order. You can see this in the layouts for ChromaPure and CalMAN.