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Calling all 50GT50 owners!!

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DRRYLSLC's picture
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RE: Calling all 50GT50 owners!!

I was watching program's in cinema mode. But noticed the burn after 10 days. Now too scared to watch anything with a logo on, so have moved the tv upstairs and playing a repair DVD and scroll bar for about 8 hours a night. It is now eventually fading but not what I was hoping for from a award winning tv. Currently have my old LCD back on the wall so I can watch a occasional sports channel.

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RE: Calling all 50GT50 owners!!

My c.a.t.s is set to on which brightens the picture when in normal viewing , if set to off it gives a duller picture , 

i might be wrong , there are no correct settings as each individuals eyes are different , so what is right for one 

Is not for the other , so find the setting which suits and stick with it .

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RE: Calling all 50GT50 owners!!

I think quite a few people, myself included, have been surprised by the amount of poential issues that you could experience on the best 50" plasma on the market. To be fair to the What HiFi team, they only have a limited amount of time to test a lot of products so they can't be expected to judge performance based on long term ownership but perhaps a few more pointers on potential issues would be nice!

I'm sorry to hear about your image retention but you're doing the right thing, letting the inbuilt tools to get rid of screen burn . image retention. Did you run in your screen for the 200-500 hours that I've seen as the recommended amount of time? Obviously, not using a TV channel with a logo.

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RE: Calling all 50GT50 owners!!

I'm sorry to hear of the screen problem too, and surprised it happened in Cinema mode, as the Pixel Orbiter is on in that mode.

My new GT50 is set to Cinema mode too, though I have taken the contrast and brightness down to below 50%, and I try not to watch programmes with a bright logo or still graphic for too long. 

It is a pain that you have to do this with a brand new product, but it does seem that you have to.

I would contact your retailer to explain what has happened, and tell them that you are unhappy because you kept the tv on sensible settings with the Pixel Orbiter on, and it is still damaged.

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RE: Calling all 50GT50 owners!!

PJ1200 wrote:

Think some people have mentioned the CNET settings.  Are these them?

http://forums.cnet.com/7723-19410_102-566046/panasonic-tc-p55gt50-pictur...

Thoughts?

Thanks for this however on my GT50 the number values are not of any use as it is just a bar you can adjust with no numbers or am i missing something or do you have to roughly guess eg 33 = 1/3rd of the bar

 

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RE: Calling all 50GT50 owners!!

stevebrock wrote:

PJ1200 wrote:

Think some people have mentioned the CNET settings.  Are these them?

http://forums.cnet.com/7723-19410_102-566046/panasonic-tc-p55gt50-pictur...

Thoughts?

Thanks for this however on my GT50 the number values are not of any use as it is just a bar you can adjust with no numbers or am i missing something or do you have to roughly guess eg 33 = 1/3rd of the bar

 

Those settings are for US GT50s. European models have different calibration screens and options. If you notice, some of the Cnet settings are not available on the GT50B, while Cnet lists no settings for 10 point greyscale calibration. In other words, you won't be able use those settings as any kind of baseline. 

Number values are listed In the Professional picture modes, but you'd be better served by downloading calibration test patterns (or ideally getting a professional calibration).

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RE: Calling all 50GT50 owners!!

stevebrock wrote:

Thanks for this however on my GT50 the number values are not of any use as it is just a bar you can adjust with no numbers or am i missing something or do you have to roughly guess eg 33 = 1/3rd of the bar

Main Menu>Setup>Advanced(isfcc) and select “On”, you’ll then find them in Viewing Mode listed as “Professional 1/2” (IIRC that’s the same route as on my GT30).

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gel
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RE: Calling all 50GT50 owners!!

How are people getting on with their GT50 now?  Mine just keeps getting better, massive smile on my face.   Smile. The pictures are awesome!

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RE: Calling all 50GT50 owners!!

Well, I'm going to sort out a replacement GT50 in the near future (I've got too much on at the moment). The dirty screen effect has arguably become more pronounced with time, while the buzzing hasn't improved either. It's a shame, as when I can't see the dirty screen effect (which to be fair is most of the time) the images are excellent.

I only wish that full calibration controls were available on all picture modes. On the Professional preset it's possible to achieve perfect greyscale tracking and colour balance with the help of an ISF certified calibrator. But the trade off is a luminance cap and slightly lighter black levels. In other words, you have to decide between lower dynamic contrast with perfect colour reproduction, or colour inaccuracies with optimum black level and contrast performance. The THX preset has no advanced calibration controls, while the Normal and Cinema presets only allow two point white balance control. All of this is true of the VT50 as well.

Nevertheless, assuming I can get a replacement I'm happy with, I'm going to go the professional calibration route, or buy a colorimeter (or spectro) and give it a go myself. The colours look off in all picture presets and these inaccuracies cannot be corrected by eye. 

On that subject, can anyone advise what the best (relatively cheap) colorimeter/spectrophotometer is? I've been looking at the i1 Display LT and the ColorMunki Display, which both get good write ups and cost less than ISF professional calibration.   

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gel
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RE: Calling all 50GT50 owners!!

strapped for cash wrote:

Well, I'm going to sort out a replacement GT50 in the near future (I've got too much on at the moment). The dirty screen effect has arguably become more pronounced with time, while the buzzing hasn't improved either. It's a shame, as when I can't see the dirty screen effect (which to be fair is most of the time) the images are excellent.

I only wish that full calibration controls were available on all picture modes. On the Professional preset it's possible to achieve perfect greyscale tracking and colour balance with the help of an ISF certified calibrator. But the trade off is a luminance cap and slightly lighter black levels. In other words, you have to decide between lower dynamic contrast with perfect colour reproduction, or colour inaccuracies with optimum black level and contrast performance. The THX preset has no advanced calibration controls, while the Normal and Cinema presets only allow two point white balance control. All of this is true of the VT50 as well.

Nevertheless, assuming I can get a replacement I'm happy with, I'm going to go the professional calibration route, or buy a colorimeter (or spectro) and give it a go myself. The colours look off in all picture presets and these inaccuracies cannot be corrected by eye. 

On that subject, can anyone advise what the best (relatively cheap) colorimeter/spectrophotometer is? I've been looking at the i1 Display LT and the ColorMunki Display, which both get good write ups and cost less than ISF professional calibration.   

 

Ah nice one.  Hope it all goes well, keep us updated.  Cheers.

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RE: Calling all 50GT50 owners!!

Exchanging mine, buzz is too loud. No problem for movies using surround speakers but no good for use without.....

will try one set, if no good it's back to LCD.....