I need some guidance in my calibrations [Text View]

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dsskid

06-27-09, 07:30 PM

I purchased an Eyeone Pro Color spectrometer, and am calibrating my Panasonic TH58PZ700U display.

In the standard mode, with warm temperature setting, I have no problem getting the grayscale 6500K, RGB, and color temp of 6500, but I'm having a hell of a time getting the luminance and Gamma to fall in line (see below). My display doesn't have designated gamma controls in the User or Service Menus, that I know of.

http://www.curtpalme.com/forum/download.php?id=8649
http://www.curtpalme.com/forum/download.php?id=8647
http://www.curtpalme.com/forum/download.php?id=8646
http://www.curtpalme.com/forum/download.php?id=8648
http://www.curtpalme.com/forum/download.php?id=8643

The picture at times seems too vibrant, could I tone it down in the User menu without screwing up the grayscale?

Is it true that the HCFR program misrepresents 2.2? I heard that 2.2 readings on their program really reflects 2.5, and that 1.9 on their program represents 2.2.

However, if I go to the cinema mode, with normal temp settings, I get:
http://www.curtpalme.com/forum/download.php?id=8642
http://www.curtpalme.com/forum/download.php?id=8636
http://www.curtpalme.com/forum/download.php?id=8635
http://www.curtpalme.com/forum/download.php?id=8645
http://www.curtpalme.com/forum/download.php?id=8638
http://www.curtpalme.com/forum/download.php?id=8637 But the picture seems a little dark.

TomHuffman

06-27-09, 08:26 PM

SierraMikeBravo

06-27-09, 08:30 PM

dsskid

06-27-09, 09:08 PM

Why are you using HCFR? I thought you purchased CalMan enthusiast software? Tom is right, check each mode to see which provides the best gamma curve and finish calibrating from there. If you want a darker image, turn down the contrast a notch or two and make sure it hasn't affected the brightness setting.
I am having a little difficuly understanding it. I wish there was a good tutorial for the software like greyscale for dummies.

I'm getting a somewhat dark pic from cinema mode, even with the grayscale of getting.

http://www.avsforum.com/avs-vb/attachment.php?attachmentid=146452&stc=1&d=1246151264

Doug Blackburn

06-28-09, 11:52 PM

I am having a little difficuly understanding it. I wish there was a good tutorial for the software like greyscale for dummies.

I'm getting a somewhat dark pic from cinema mode, even with the grayscale of getting.

http://www.avsforum.com/avs-vb/attachment.php?attachmentid=146452&stc=1&d=1246151264

For viewing in a dark room --- display a 100% white window pattern and adjust the contrast control to produce about 30-35 fL. If there is light in the room, Cinema mode may not produce a picture bright enough to suit you. If that's the case use Standard mode - it won't be fully calibrated, but having light in the room essentially de-calibrates you anyway (unless if is 6500K light and it shines on dark neutral gray or black walls/ceiling/floor).

If the color looks over saturated, turn down the Color control in the user menu until it looks right.

Your TV has no gamma controls, but adjusting the cut and gain controls sometimes affect gamma (unpredictably). Your software should be able to tell you want the gamma is accurately (CalMAN can anyway). Your TV will likely have a gamma that's lower than 2.2... how much lower (could be 2.1, 2.0 or even 1.9) can depend on how you adjusted the cuts and gains. If you end up with a 1.9 gamma (average), you may want to try moving all the cuts or all the gains up or down 1 or 2 clicks... measure the grayscale again to make sure balance is retained then have a look at what gamma changes to - it may get better or it may get worse. Keep trying different combinations of cuts/gains until you find the combo that gives you a reasonably well-balanced grayscale while getting the gamma as close to 2.2 as you can (it will still probably end up lower than 2.2 - but you may find a lucky combo that gets you up to 2.2).

Bear5k

06-29-09, 12:01 PM

I am having a little difficuly understanding it. I wish there was a good tutorial for the software like greyscale for dummies.

Have you looked through the integrated help on the right-hand side of the screen or the How-To files?

dsskid

07-01-09, 09:50 AM

For viewing in a dark room --- display a 100% white window pattern and adjust the contrast control to produce about 30-35 fL. If there is light in the room, Cinema mode may not produce a picture bright enough to suit you. If that's the case use Standard mode - it won't be fully calibrated, but having light in the room essentially de-calibrates you anyway (unless if is 6500K light and it shines on dark neutral gray or black walls/ceiling/floor).

If the color looks over saturated, turn down the Color control in the user menu until it looks right.

Your TV has no gamma controls, but adjusting the cut and gain controls sometimes affect gamma (unpredictably). Your software should be able to tell you want the gamma is accurately (CalMAN can anyway). Your TV will likely have a gamma that's lower than 2.2... how much lower (could be 2.1, 2.0 or even 1.9) can depend on how you adjusted the cuts and gains. If you end up with a 1.9 gamma (average), you may want to try moving all the cuts or all the gains up or down 1 or 2 clicks... measure the grayscale again to make sure balance is retained then have a look at what gamma changes to - it may get better or it may get worse. Keep trying different combinations of cuts/gains until you find the combo that gives you a reasonably well-balanced grayscale while getting the gamma as close to 2.2 as you can (it will still probably end up lower than 2.2 - but you may find a lucky combo that gets you up to 2.2).

Thank you for your reply and advice.
Even with the contrast turned up to 30 in Cinema mode, I couldn't get the ftls up to 30, which is too dark for my viewing environment, so I'll stick with Standard mode.
In Standard, I set the ftL to 35 - 36 and went back to readjusting cut and drive controls (red and blue only), but still could not seem to straighten the gamma out.
John

dsskid

07-01-09, 09:55 AM

Have you looked through the integrated help on the right-hand side of the screen or the How-To files?

Yes, I did, I understand how to use the bullseye, But in the instructions, it says adjust the cuts and drives, including green (which I thought was a no-no), to reach the bullseye center.

How do you increase the size of each chart? Very difficult to read when they are so small.

Also, the program mentions using patterns that aren't in the DPG-1000 pattern generator, which is produced by SpectraCal/CalMAN, which is strange

Bear5k

07-01-09, 10:08 AM

Yes, I did, I understand how to use the bullseye, But in the instructions, it says adjust the cuts and drives, including green (which I thought was a no-no), to reach the bullseye center.
People try to steer away from adjusting the Green cut or drive controls because it has the greatest effect on your display's dynamic range and on whether you have the overall brightness/contrast settings correct. If you have to use them, then you will definitely want to double-check the master brightnes/contrast controls. You may even have to bounce back and forth between them. Beyond this, there isn't a reason not to use the controls you have at-hand. Asany major errors in those instructions, we'd have heard about it and corrected it.

There are some places where we made some simplifying rationalizations, and there are places where stylistically one calibrator would do it slightly differently, but that's about it. Flame suit is now on, of course!

How do you increase the size of each chart? Very difficult to read when they are so small.
Put the application into Design mode, and then resize to your heart's content.

Also, the program mentions using patterns that aren't in the DPG-1000 pattern generator, which is produced by SpectraCal/CalMAN, which is strange
The help files pre-date the DPG-1000 by more than a year. An update does need to be made, but the patterns are basically there, and if you are using a DPG-1000, the app is going to pick the relevant patterns for you automatically.

Bill

dsskid

07-01-09, 10:36 AM

People try to steer away from adjusting the Green cut or drive controls because it has the greatest effect on your display's dynamic range and on whether you have the overall brightness/contrast settings correct. If you have to use them, then you will definitely want to double-check the master brightnes/contrast controls. You may even have to bounce back and forth between them. Beyond this, there isn't a reason not to use the controls you have at-hand. Asany major errors in those instructions, we'd have heard about it and corrected it.

There are some places where we made some simplifying rationalizations, and there are places where stylistically one calibrator would do it slightly differently, but that's about it. Flame suit is now on, of course!

Put the application into Design mode, and then resize to your heart's content.

The help files pre-date the DPG-1000 by more than a year. An update does need to be made, but the patterns are basically there, and if you are using a DPG-1000, the app is going to pick the relevant patterns for you automatically.

Bill
Thanks Bill.
I'll try out Design mode tonight.