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The Official ChromaPure thread - Page 12

post #331 of 5355
The stim% the RS20 adjusts for a given point may not quite be stim% the ChromaPure is anticipating, even though each might be called 80%, e.g., and I'm not sure how you'd get around that.
post #332 of 5355
Quote:
Originally Posted by millerwill View Post

Yes, what you describe is what I observe. But I'm afraid I don't follow what the correct procedure should be.

Bill, what are you using for test patterns?
post #333 of 5355
Quote:
Originally Posted by TomHuffman View Post

Bill, what are you using for test patterns?

GetGray: the 75% stim, windowed color patterns for CMS, and the 10% stim intervals for grayscale.
post #334 of 5355
Any ETA on the new ChromaPure for individual Models of TV's or do we contact Tom in this regards?
post #335 of 5355
Can profiled meters be used for CMS and white balance or just the latter?
post #336 of 5355
Quote:
Originally Posted by bodosom View Post

Can profiled meters be used for CMS and white balance or just the latter?

You can use it for either or both.
post #337 of 5355
I currently have ChromaPure version 1.2.1.38491
Is there an ETA on the next (minor) version upgrade ?

And how will current owners be notified ?
post #338 of 5355
Quote:
Originally Posted by catmother View Post

I currently have ChromaPure version 1.2.1.38491
Is there an ETA on the next (minor) version upgrade ?

And how will current owners be notified ?

Several people have asked this question. We had originally intended to get 1.3 out in March, but we have been sidetracked with another task. The new goal is to get it out before the end of April. If it begins to look like that date is going to slip, I'll let everyone know.
post #339 of 5355
Quote:
Originally Posted by TomHuffman View Post

Several people have asked this question. We had originally intended to get 1.3 out in March, but we have been sidetracked with another task. The new goal is to get it out before the end of April. If it begins to look like that date is going to slip, I'll let everyone know.

If the delay is due to incorporating this:

Quote:


I occured to me recently that it would be really useful to have a white balance display (in real time) on the same screen as the gamma calibration page.

it is worth waiting for.
post #340 of 5355
I assume the ChromaPure will support the Chroma5 Enhanced? Am I also to assume it will also support the Spyder3 Pro? (My new backup Meter that's coming in.)
post #341 of 5355
Quote:
Originally Posted by p5browne View Post

I assume the ChromaPure will support the Chroma5 Enhanced? Am I also to assume it will also support the Spyder3 Pro? (My new backup Meter that's coming in.)

The "Chroma 5 Enhanced" you refer to is simply an additional calibration table that another company has added to the Chroma 5's standard LCD and CRT modes. We will be adding our own software-based calibrations to the Chroma 5. No, we have no current plans to support the Spyder3 Pro.
post #342 of 5355
I read the site and ChromaPure demo.





Awesome!
post #343 of 5355
Does anyone know the approximate viewing angle of the Display2LT and of the I1Pro? TIA, Bill
post #344 of 5355
isnt i1 pro set at a higher level than i1 D2 and Chroma5?

why does it handle lower luminance level worse than both meters above?

why didn't they make it so that i1 pro outperforms both meters above in all areas?

as Tom suggested, for the most accurate result, we will have to use both i1 pro + i1 D2 in combination or Chroma 5 by it self would be fine since its accuracy is very close to the level of i1 pro.
post #345 of 5355
A spectral device such as the i1Pro is limited in its low light level accuracy by the CCD detector, the signal to noise ratio of the electronics and the bandwidth of the instrument. To be able to achieve the low light level which the i1Pro has it used a bandwidth of 10nm which is not very good for measuring a display with complex spectral content such as LCD which may be very spikey.

If the bandwidth of the instrument were 5nm it would receive only half the amount of light that it does in the 10nm configuration and would therefore not have the ability to measure even as low as it presently does which is not that great to begin with. As the light level decreases and integration time increases signal to noise levels rise which eventually will become higher then the signal level making the accuracy of the instrument very poor. There is no way that the i1Pro could measure to as low a light level as the i1D2/LT or Chroma 5 without making it extremely expensive by using a far more sensitive CCD detector and sophisticated electronics to provide improved signal to noise ratio.

Spectroradiometers that are able to measure to the light level of a Chroma 5 are extremely expensive ie PhotoResearch PR-705 and Minolta CS-2000/A.
post #346 of 5355
Could people who got the ChromaPure calibration software give us some screenshots because I couldn't find Luminance graph anywhere in the demo.

Luminance Graph is really important for me since that you might be able to get a nice looking RGB Level graph but you might also get a bad looking Luminance Graph at the same time vice versa. Is this ever going to be implemented?

And it would be nice if Tom could implement RGB level bars and numbers reading at real time at the Gamma Calibration section too because you could control gamma by adjusting Green Level alone but then Red Level and Blue Level might be out of the places.

I usually rely on RGB Level Graph + RGB Level numbers, Luminance Graph, Gamma graph, D65 graph when adjusting greyscale and gamma.

Even though Gamma Graph alone is able to tell that I will have a nice Luminance Curve for Luma, RGB level but still would be nice to have it. You could get a nice gamma graph but Luminance Graph could still be off, the RGB Luminance might not be balanced.
My biggest wish list is to have RGB Level reading in real time in gamma section too so that I could adjust gamma to supposed point. Since LG LH95/LHX does not offer a gamma adjustment that will bring RGB levels at each IRE evenly together but rely on user themselves to bring all three RGB levels up to the target gamma point.
post #347 of 5355
ChromaPure 1.3 is now available.

New Features

This version supports the Chroma 5 PRO colorimeter. This is a software-enhanced version of the Chroma 5 in which the meter is calibrated to several display types using a reference spectroradiometer. This provides dramatically improved accuracy for a wide variety of display types.

For details, see

http://www.chromapure.com/products-chroma5pro.asp

Note: This upgrade is only for Chroma 5 users or those who wish to use the Chroma 5. All other core features remain the same from the previous version.
post #348 of 5355
Hi Tom,
This sounds like an exciting and beneficial upgrade. I especially like the periodic recalibration service. In my particular case I have a (first generation) Sony SXRD display so I'm wondering if I will see any benefit to upgrading to the Chroma 5 Pro.
post #349 of 5355
Quote:
Originally Posted by Geof View Post

Hi Tom,
This sounds like an exciting and beneficial upgrade. I especially like the periodic recalibration service. In my particular case I have a (first generation) Sony SXRD display so I'm wondering if I will see any benefit to upgrading to the Chroma 5 Pro.

Certainly. This is our attempt to offer the most accurate probe we can at prices most people can afford.
post #350 of 5355
Quote:
Originally Posted by TomHuffman View Post

Certainly. This is our attempt to offer the most accurate probe we can at prices most people can afford.

I like your solution but I wasn't sure which (if any) of the eight correction profiles would be applicable to my XBR1 SXRD RPTV (whew, say that 3 times fast ). Which profile would I use (I currently use the internal general use profile).

Generic LCD
Samsung Standard
Samsung LED
Sony Standard
Sony LED
CRT
Plasma
Front Projection
post #351 of 5355
Quote:
Originally Posted by TomHuffman View Post

... This upgrade is only for Chroma 5 users ...

It's not quite clear on your web page -- can I send in my C5 (not purchased from ChromaPure) in and get it converted to a Pro?
post #352 of 5355
Great to hear about the continuing development, Tom.

Any progress on having a Mac version of ChromaPure? I am SO much more effective with it than using my wife's pc.
post #353 of 5355
Quote:
Originally Posted by bodosom View Post

It's not quite clear on your web page -- can I send in my C5 (not purchased from ChromaPure) in and get it converted to a Pro?

I'm not 100% sure about that either but I think the answer is yes...."Upgrade of Chroma 5 license for existing ChromaPure users: $100.00 (You pay for shipping to us and we pay for shipping back to you.)".
post #354 of 5355
Quote:
Originally Posted by bodosom View Post

It's not quite clear on your web page -- can I send in my C5 (not purchased from ChromaPure) in and get it converted to a Pro?

Absolutely. This is a software and license file update. Nothing is being done to the C5 itself, but we need it to take measurements. Just order from the online system and we will send you an address to ship your C5 to us. The turn around is just a couple of days.
post #355 of 5355
Quote:
Originally Posted by Geof View Post

I like your solution but I wasn't sure which (if any) of the eight correction profiles would be applicable to my XBR1 SXRD RPTV (whew, say that 3 times fast ). Which profile would I use (I currently use the internal general use profile).

Generic LCD
Samsung Standard
Samsung LED
Sony Standard
Sony LED
CRT
Plasma
Front Projection

??
post #356 of 5355
Quote:
Originally Posted by Geof View Post

I like your solution but I wasn't sure which (if any) of the eight correction profiles would be applicable to my XBR1 SXRD RPTV (whew, say that 3 times fast ). Which profile would I use (I currently use the internal general use profile).

Generic LCD
Samsung Standard
Samsung LED
Sony Standard
Sony LED
CRT
Plasma
Front Projection

The front projection profile would offer the best performance for rear projectors with UHP bulbs.
post #357 of 5355
Quote:
Originally Posted by TomHuffman View Post

The front projection profile would offer the best performance for rear projectors with UHP bulbs.

Thanks. That would have been my guess but I wasn't sure. I'll upgrade to the Pro before my next calibration.
post #358 of 5355
Don't see any reference to the LG LEDs?
post #359 of 5355
This sounds like a great enhancement. Protects the custromers' investments and creates reoccuring revenue. A win, win for everybody.
post #360 of 5355
Quote:
Originally Posted by p5browne View Post

Don't see any reference to the LG LEDs?

This is something we may add in the near future. I first wanted to see if the program was successful. Doing this requires a non-trivial capital investment on our part.
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