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CIELab L*



There must be a massive difference in reflective versus emissive capability then. If the i1Pro couldn't measure down to 5 or below it would be useless to anyone profiling their Epson printer. Min L* with Epson Adv B&W driver and PK ink on Hahnemuhle Photorag Baryta paper is below 5. (To be more precise, the profile I am looking at has L*ab values of 4.85, -0.47, 0.79 respectively. An L* of 9 is only about 93% grey for that printer, ink and paper combination.) The i1Pro can comfortably measure the difference between, say, 94, 96, 98 and 100% black (L* of 6.93, 5.39, 5.0, 4.85 in this case).
 

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Discussion Starter #882

Quote:
Originally Posted by stevekale  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22318375


CIELab L*

ah, ok. in CIELab L*=Y/Yw*903.3 for mll's below about 1 cd/m^2 (~11% stimulus), so using this formula with peak white=120 cd/m^2:


1. i1pro minimum L* ~ 0.4

2. D3 minimum L* ~0.08
 

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I didn't think there was any other L*


How dark do you think a good PDP is, powered with a well-set brightness? (Such as my Kuro. I really need to get a Windoze machine and get playing around....) Also, if you can answer my question above re calibration of the i1Pro I would greatly appreciate it.


Can one buy a D3/Pro without any software included? I already have i1Profiler.
 

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Discussion Starter #884
It's the same L* but has a linear segment when you get close to zero light (Y/Yw

The darkest consumer PDPs currently on the market are 2012 panasonics where minimum L* will approach 0.08 but the i1pro won't be able to measure it. Kuro Elites are a factor of 10 better than today's PDPs but you need a Klein (high end colorimeter) to measure them.


Regarding dark calibration of the i1pro - this needs to be performed quite often if you want to measure low light levels as the temperature drift of the sensor is pretty strong. HCFR just performs a dark calibration so all you need to do is block the aperture. The xrite software also performs an LED calibration for reflective measurements and that's where you need the white tile.


I believe all the retail D3s come with the basic xrite match software but these will work fine with HCFR.
 

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Quote:
Originally Posted by zoyd  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22318596


It's the same L* but has a linear segment when you get close to zero light (Y/Yw


Ok that I knew. I'm more used to measuring L* directly, deriving Y (or your Y/Yw) and calculating density.

Quote:
Originally Posted by zoyd  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22318596


The darkest consumer PDPs currently on the market are 2012 panasonics where minimum L* will approach 0.08 but the i1pro won't be able to measure it. Kuro Elites are a factor of 10 better than today's PDPs but you need a Klein (high end colorimeter) to measure them.

This is my display http://www.pioneer.eu/uk/products/archive/PDP-LX608D/index.html
Quote:
Originally Posted by zoyd  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22318596


Regarding dark calibration of the i1pro - this needs to be performed quite often if you want to measure low light levels as the temperature drift of the sensor is pretty strong. HCFR just performs a dark calibration so all you need to do is block the aperture. The xrite software also performs an LED calibration for reflective measurements and that's where you need the white tile.

I believe all the retail D3s come with the basic xrite match software but these will work fine with HCFR.

Ok. It's just puzzling given that Xrite uses the white tile for calibration ahead of display profiling.


Sounds like I should grab a D3. i1Match is discontinued. I believe the D3/Pro ships with the full i1Profiler but the device acts as a dongle. Does anyone know if the meter-only pricing here http://www.curtpalme.com/ChromaPure_EyeOneDisplay3.shtm simply means the D3 plus i1Profiler or is it just the D3 and so cheaper still?
 

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Discussion Starter #887
I'm not sure but I think the non-elite Kuros are around 0.01 cd/m^2 which would put them at the same level as the 2012 Panasonics. That's at the limit of the D3 sensitivity but if you have a 10pt gamma control you should be able to get the 10% level correct.
 

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I don't think there was an Elite designation in Europe. The LX608D was their absolute top of the line display here. It cost over £5k. There was the 608D and the 6080D - the former had the Direct Colour Filter 3 technology. I think this is the PDP that was sold as an Elite in the US.
 

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Ok I have ordered an i1 Display 3.
 

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Quote:
Originally Posted by zoyd  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22319660


Well I guess you'll find out if/when the D3 reads 0.0 😊

Hmmm I think the set you are referring to was released a year after mine - 9G plasma, the second edition of Kuro and the last. I didn't even focus on it at the time. Damn.
 

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Hi,


it's a question that probably has been asked before, but what's the best way to create a projector-profile for an HCFR colorimeter?

It happens that I have an i1 pro (UV-cut, Rev. A) and Calman 4 for a few days, so I'd like to create a .thc file for my projector, as none of the existing suits me.


Thanks
 

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Quote:
Originally Posted by kjgarrison  /t/1393853/fork-of-hcfr-started-whats-needed/750#post_22204517


FWIW, here is the matrix for my D3 which is a D3 "Pro" (Pro meaning it was calibrated by Chromapure) and the corrections were provided, resulting in this matrix. Fairly similar results to yours Zoyd
Code:
Code:
[CODE]1.007784412  0.006564804     -0.002042014
-0.001327602    0.990473662     0.001055968
-0.006456811    0.002961534     1.000986046
[/CODE]
Above is "3 color matrix".

If I should use 4 color matrix, it is below.
Code:
Code:
[CODE]1.038606808  -0.002502512    -0.011492028
0.010401065     0.994002567     -0.003384238
-0.006758658    0.008717773     0.977999919
[/CODE]

What is the difference between 3 colour matrix, and a 4 colour matrix??
 

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Ok have i1Pro and i1 Display Pro. Also looking at getting ControlCal so I can access the gamma settings in my 8G Kuro. How do I calibrate the D3 with the i1Pro?


JohnAD, hopefully you didn't melt last weekend and are still with us...
 

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Need some help...I just downloaded hcfr 3.0.4 over 2.01 and it cant see my 1i display 2 communicating with software...I keep getting argylle severe error.


Version 2.01 worked fine with 1D2...


How can I get hcfr 3.04 to communicate with my iD2....I have read post after post and my head is spinning...



Edit: Got it working,I did not know i had to dl argylle zip and delete a few of my other drivers to aim my id2 to argylle.
 

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Quote:
Originally Posted by ndaa75  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22327636


What is the difference between 3 colour matrix, and a 4 colour matrix??

Anyone able to give an answer to this?

Also using my 'profiled' i1d3 my wife has commented that whites look a little green!!!! I did notice on my settings that red in WB settings really had to be reduced to bring the grayscale in line.
 

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Which avs709 patterns are best for calibrating a Panny GT30 when using HCFR?


Small or Large apl patterns or the standard 10% greyscale window?


I get a difference when reading apl patterns in regards to regular window and I will like to know which one works best for Panny Plasma.


Thanks...
 

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Quote:
Originally Posted by PeterLewis  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22330118


Which avs709 patterns are best for calibrating a Panny GT30 when using HCFR?

Small or Large apl patterns or the standard 10% greyscale window?

I get a difference when reading apl patterns in regards to regular window and I will like to know which one works best for Panny Plasma.

Thanks...

use the smallest window patterns you have to avoid the panels auto limiting circuit.
 

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@vega509


Thanks for your help.Will give it a go...
 

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Quote:
Originally Posted by ndaa75  /t/1393853/fork-of-hcfr-started-whats-needed/870#post_22329688


Anyone able to give an answer to this?

Also using my 'profiled' i1d3 my wife has commented that whites look a little green!!!! I did notice on my settings that red in WB settings really had to be reduced to bring the grayscale in line.

I eventually came to this conclusion as well with HCFR and my i1D3. Using Zoyd's correction matrix was just a tad greener than I liked. I did not have this issue when calibrating with Calman however. HCFR is still not doing something right with the i1D3 - at least not on my VT30 plasma. The Calman calibration simply looks visually better when doing A-B comparisons.
 
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