Here I am, giving a test to v.2 + DVD HCFR v2 + EyeOne Display LT + plasma Pioneer 508XD + DVD PAL + SCART.
Another night testing!
First of all I must admit I've got used to the new user interface quickly and liked it.
I've noticed you've introduced some new patterns on the DVD, like grayscale and saturation colors.... maybe when possible, you could update the guide "pour nuls" on the website to explain how to maximize HCFR usage, step by step.
That test has been performed in a complitely dark room, with little ligth coming out from my laptop's display, but far from the sensor.
I've started the test resetting the TV controls and starting from scratch, configured the sensor, etc.
I've noticed that plasma screens are available in the Eyeone list. The measurements look defintelly faster with version 2, but I've noticed some difference in measuring Y values, when dealing with contrast. Could it depend on the more accurate measurements?
I've started setting the contrast/brightness and I've noticed that HCFR with Eyeone Display LT on my Kuro has some measurements problems on very low "light" conditions.. reading IRE 0 is impossible, the program (or the sensor) chokes reading up to 40 IRE, then again on 50 IRE chokes again; from 60 to 100 IRE, it's Speedy Gonzales. That's a bit annoying particullarly when measuring RGB levels later on.
BTW, as in the guide "pour nuls" it is not explained how to set "scientifically" the proper amount of contrast and brightness, I've followed Tom Huffmans guide, where it states that, for a plasma screen, a correct Y within a 100% white window,should be set so that mesurement gives Y=121.
Once there, Huffman calculates the proper brightness adjustment to be (in the scenario above, with a target gamma @ 2.2) in a 10% window at Y=0,76; while it was quite easy to set the contrast, it was not to set the brightness: to get a measurable value I had to push brightness too much, say to a +8 value, while it is worldwide known that reccomended brightness for Kuros shouldn't go above +1. As I've said it looks like my sensor (or HCFR?) has some troubles when measuring IRE 0 to 20. It would be nice from the authors to discuss this if possible.
At this point I had to use the grayscale pattern on the DVD and set the proper gamma using eye-based evaluation!
After adjusting I've stepped back again into grayscale measurements and probabily due to wrong measurements I had a poor gamma curve.
Then, I've set the color amount: Huffman uses a calculation to adjust color given a calculated Y on red; in my case was about Y=25, but as a professional told me in the english forum, I could reach the same result pushing red in it's proper position on the CIE chart (using color amount control).
So I could get deeply into the CIE chart and discovered that HCFR 2 has nor problem when adjusting HUE with continuos measuring, as it suffered in version 1.
As I was told that, unlike many rookies think, you should never try to adjust RGB on the CIE chart using HUE at the risk of obtaining nonlinear grayscale (can't even imagine what it means), I've adjusted only YCM to get them into D65.
Here is my little suggestion: add an icon in the toolbar to perform secondaries-only measurements. Would be useful in this phase.
Once there I've started RGB calibration, passing into 3 cycles of RGB adjust and back into YCM adjust and so on.
The new 3d RGB bar charts are very effective!
When finished adjusting I think I've end with a quite good result; sure it isn't perfect, but we must consider I'm using a poor sensor, a supermarket DVD player and a SCART cable (although it is a 1,5mt 60€ cable).
Probabily I could get better results with other equipment, and I'm wondering if a better player with HDMI cables will give better results.
Edit: looking at the CIE chart again, I'd like to pose another suggestion: could it be possible to add another context menu reference value in the CIE chart to show dot lines going from G to M, C to R and B to Y in continuos reading mode? Very handy to get values to cross on D65
DVD After.zip 4.109375k . file