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Official Panasonic VT50 owners thread - Page 444

post #13291 of 13486
Chad will be here tomorrow night, will post updates. Also need to check hours tonight as well.

AFAIK I do not have a problem with the yellowing, but whats a good pattern to check with? I'd assume it needs to be a certain form of gray.
post #13292 of 13486
Quote:
Originally Posted by gadgtfreek View Post

Chad will be here tomorrow night, will post updates.

Say hi for me. smile.gif
post #13293 of 13486
Quote:
Originally Posted by gadgtfreek View Post

Just check the avatar and the crystal football cool.gif


Go Noles.

I'am a Buffalo Bills fan and I'am ticked off that FSU Noles sent us the wrong quarterback...mad.gif

Ej Manuel was horrible last season and he is about as fragile as fine china.

Please take him back and send us Winston.
post #13294 of 13486
LOL. Yepp, EJ is very fragile and makes stupid decisions. Several of the hits Winston took this year would have put EJ out a game or two.
post #13295 of 13486
3/6/13 91 hours

96hz 0.0018fL
60hz 0.0023fL

1/19/14 1798 hours

96hz 0.0015fL
60hz 0.0018fL


Both taken with D3 Pro and Chromapure.

I do not see any odd uniformity(yellow blob) except for the 60% field, where it looks like there is something soft ball sized on the left hand side, near the upper corner. If I move around the room, it seems to give a different look. Odd thing is, when the 0% signal is sent, this same area appears brighter in a pitch black room. When I tested that spot with the meter, it read 0.003fL.

Everything else looks OK. Letterbox bars test the same as the center of the screen, so thats great for dark room movies. cool.gif


Also, as I ran the full fields from 0-100% for awhile and the uniformity seemed to get better, at least to my eyes. Im not sure if some of this isnt a product of the live content I had been viewing since I got home.

Im going to let the color slides cycle all night and day and see what everything looks like again when I get home from work, before chad gets here.
post #13296 of 13486
Chad just finished and he found 0.002fL roughly in 96hz mode. Since I was not using 3D he did not even mess with it, and since I never used Day mode and wanted to try BT.1886 gamma he made my Day mode like the old night mode with 36fL and a standard gamma. Just in case. He then made my Night mode meet BT. 1886. In a little over 5 months the panel had not shifted a lot, but it had shifted some.


BT 1886 Charts
http://www.mediafire.com/view/7rfur0w4fpbobdq/Pan%2065VT50%20ISF%20Night%20bt1886.pdf

Power Curve Gamma Charts
http://www.mediafire.com/view/jcjke8sisoal4za/Pan%2065VT50%20ISF%20Day%20power%20curve.pdf


Chad was familiar with the yellow blob, he took some looks and uniformity was fine.
post #13297 of 13486
Looks great. smile.gif
post #13298 of 13486
Yeah, I like gamma result. Starts out a little low to help the dark scenes have more detail, then ramps up to give a more rich look.
post #13299 of 13486
The BT1886 can just look stunning - especially on new content which is said to be mastered at that level. Adds a lot of depth to the image.
post #13300 of 13486
Yeah, I cant wait to watch a flick in the dark. Content seems fine to me with the lamp on, Ill doubt Ill use anything but this mode.
post #13301 of 13486
Quote:
Originally Posted by DavidHir View Post

The BT1886 can just look stunning - especially on new content which is said to be mastered at that level. Adds a lot of depth to the image.

Any examples of said content?
post #13302 of 13486
post #13303 of 13486
Quote:
Originally Posted by buzzard767 View Post

Any examples of said content?

The Grey, Flight, The World's End, American Reunion, We're the Millers, Robocop (remastered version), The Lone Ranger, and The Right Stuff. I did a lot of A/B comparisons between BT1886 and 2.3 especially looking at darker and shadow detail in the lower APL range and BT1886 just seemed spot on.

On the other hand, older discs - like Trading Places - just seemed a bit crushed and looked more preferable at 2.3 (which still seemed a bit dark).

I watched The Outlaw Josey Wales the other night - kind of a toss up but leaning toward 2.3. Same goes for some other older titles. I do suspect as has been reported by some people in the industry that 2.2 was used on quite a few older titles.

Bottom line: not a bad idea having multiple gammas if you're picky. smile.gif
post #13304 of 13486
Quote:
Originally Posted by DavidHir View Post

Quote:
Originally Posted by buzzard767 View Post

Any examples of said content?

The Grey, Flight, The World's End, American Reunion, We're the Millers, Robocop (remastered version), The Lone Ranger, and The Right Stuff. I did a lot of A/B comparisons between BT1886 and 2.3 especially looking at darker and shadow detail in the lower APL range and BT1886 just seemed spot on.

On the other hand, older discs - like Trading Places - just seemed a bit crushed and looked more preferable at 2.3 (which still seemed a bit dark).

I watched The Outlaw Josey Wales the other night - kind of a toss up but leaning toward 2.3. Same goes for some other older titles. I do suspect as has been reported by some people in the industry that 2.2 was used on quite a few older titles.

Bottom line: not a bad idea having multiple gammas if you're picky. smile.gif

My question was do you have knowledge of content actually mastered at BT.1886?
post #13305 of 13486
Quote:
Originally Posted by buzzard767 View Post

My question was do you have knowledge of content actually mastered at BT.1886?

Nope. Just going by some general discussions from Munsil and others.
post #13306 of 13486
Quote:
Originally Posted by DavidHir View Post


Bottom line: not a bad idea having multiple gammas if you're picky. smile.gif

I'm nearly settled into my temporary digs and will be doing testing with the newest version of LightSpace software which enables 9261 color point profiles for 3D LUT production as well as BT.1886 LUTs (new). This will include both a 65VT50 and a 65VT60. From the profiles I'll be able to produce LUTs at any gamma I want, and as many different gammas as I want, for visual comparison.
post #13307 of 13486
Quote:
Originally Posted by DavidHir View Post

Quote:
Originally Posted by buzzard767 View Post

My question was do you have knowledge of content actually mastered at BT.1886?

Nope. Just going by some general discussions from Munsil and others.

That's an unanswered question. I've seen some Munsil information but also have first hand contrary info from Light Illusion who deals with studios and post houses directly. If 1886 is the future, then great, but I want to set up a display for 1886 with known 1886 content. I'm expecting greatness, even with deep black displays. I've always been an optimist. biggrin.gif
post #13308 of 13486
Well, hopefully some of the knowledgeable folks around here are right in that this year there will be some bigger boys (studios) out there going to 1886. Standard would be nice, thats what we aim for is watching on a display that is as close as possible to what the movie was.

I just know from experience, I preferred a higher (2.35) gamma vs a 2.2 on another plasma, it was just problematic in the low end. The 1886 "curve" seemingly addresses that issue. I also spoke with Tom Huffman briefly about it and what he said about 1886 "makes sense".

Now I just have to watch this thing for a few weeks and see what I think!
post #13309 of 13486
Quote:
Originally Posted by buzzard767 View Post

That's an unanswered question. I've seen some Munsil information but also have first hand contrary info from Light Illusion who deals with studios and post houses directly. If 1886 is the future, then great, but I want to set up a display for 1886 with known 1886 content. I'm expecting greatness, even with deep black displays. I've always been an optimist. biggrin.gif

But we don't know for certain what any disc or broadcast is at for gamma. It could be 2.2, 2.23, 2.28, 2.3, 2.35, etc. I think it still just comes down to preference still at this point. According to Munsil and some others, quite a bit of new content is being mastered at BT1886. Based on observations, subjectively, I think there is something to it because it looks very good with new releases. Older releases though, definitely more hit and miss.
post #13310 of 13486
Quote:
Originally Posted by gadgtfreek View Post

Well, hopefully some of the knowledgeable folks around here are right in that this year there will be some bigger boys (studios) out there going to 1886. Standard would be nice, thats what we aim for is watching on a display that is as close as possible to what the movie was.

I just know from experience, I preferred a higher (2.35) gamma vs a 2.2 on another plasma, it was just problematic in the low end. The 1886 "curve" seemingly addresses that issue. I also spoke with Tom Huffman briefly about it and what he said about 1886 "makes sense".

Now I just have to watch this thing for a few weeks and see what I think!

Yep! I agree! The question will always be whether or not a display with outstanding ANSI contrast needs the 1886 curve. I suspect that even with OLED or FALD LED the observed picture will be very good. It will certainly be nice if "gamma" can be something other than "recommended" in the future.
post #13311 of 13486
Quote:
Originally Posted by gadgtfreek View Post


Now I just have to watch this thing for a few weeks and see what I think!

Yup, bottom line at this point.
post #13312 of 13486
Quote:
Originally Posted by buzzard767 View Post

Yep! I agree! The question will always be whether or not a display with outstanding ANSI contrast needs the 1886 curve. I suspect that even with OLED or FALD LED the observed picture will be very good. It will certainly be nice if "gamma" can be something other than "recommended" in the future.

Agree 100%. Chad and I discussed the Oled, and it'd be assumed a 1886 cal with an OLED, would basically be a flat 2.4 since its mll is, well, zero.

tongue.gif
post #13313 of 13486
Quote:
Originally Posted by DavidHir View Post

Quote:
Originally Posted by buzzard767 View Post

That's an unanswered question. I've seen some Munsil information but also have first hand contrary info from Light Illusion who deals with studios and post houses directly. If 1886 is the future, then great, but I want to set up a display for 1886 with known 1886 content. I'm expecting greatness, even with deep black displays. I've always been an optimist. biggrin.gif

But we don't know for certain what any disc or broadcast is at for gamma. It could be 2.2, 2.23, 2.28, 2.3, 2.35, etc. I think it still just comes down to preference still at this point. According to Munsil and some others, quite a bit of new content is being mastered at BT1886. Based on observations, subjectively, I think there is something to it because it looks very good with new releases. Older releases though, definitely more hit and miss.

I get that, but like I said, or should have said, Munsil doesn't sell software to studios, Light Illusion does, and works closely with them. Gamma needs to be part of the standard. When it happens we can all quit guessing and calibrate accordingly. smile.gif
post #13314 of 13486
Quote:
Originally Posted by buzzard767 View Post

I get that, but like I said, or should have said, Munsil doesn't sell software to studios, Light Illusion does, and works closely with them. Gamma needs to be part of the standard. When it happens we can all quit guessing and calibrate accordingly. smile.gif

Are they saying 2.2 is being used for their clients?
post #13315 of 13486
In my former job I was a member of ASTM. Boy, what a mess. But, at the end of the day, put smart folks in a room, hammer out a good standard, and implement it. I firmly believe in standards.

What you end up without is the wild wild west.
post #13316 of 13486
Quote:
Originally Posted by DavidHir View Post

Quote:
Originally Posted by buzzard767 View Post

I get that, but like I said, or should have said, Munsil doesn't sell software to studios, Light Illusion does, and works closely with them. Gamma needs to be part of the standard. When it happens we can all quit guessing and calibrate accordingly. smile.gif

Are they saying 2.2 is being used for their clients?

Yes, for the most part. But the times they are a changing.... We'll all have to stand by and see what happens. With standards what they are, so concise, it's amazing that gamma is such a point of contention. I automatically (brainlessly) calibrate Night at 30-35 FtL/2.4ish and Day at 50+/2.2.
post #13317 of 13486
Quote:
Originally Posted by buzzard767 View Post

Yes, for the most part. But the times they are a changing.... We'll all have to stand by and see what happens. With standards what they are, so concise, it's amazing that gamma is such a point of contention. I automatically (brainlessly) calibrate Night at 30-35 FtL/2.4ish and Day at 50+/2.2.

Well, that "brainlessness" makes a lot of sense.
post #13318 of 13486
Quote:
Originally Posted by DavidHir View Post

Quote:
Originally Posted by buzzard767 View Post

Yes, for the most part. But the times they are a changing.... We'll all have to stand by and see what happens. With standards what they are, so concise, it's amazing that gamma is such a point of contention. I automatically (brainlessly) calibrate Night at 30-35 FtL/2.4ish and Day at 50+/2.2.

Well, that "brainlessness" makes a lot of sense.

Those are numbers that apply to a large variety of display capabilities. Generally, they work, and I only have so much time. I used to spend countless hours with my personal TV's looking for answers regarding gamma and have to admit that 2.2/2.4 worked reasonably well. This graph might be a repeat in this thread but it is the professional recommendation for studio monitors. As can be seen the guideline parameters can only be described as loose.

post #13319 of 13486

Temporary Blue Pixel Sparkle Image Retention from Brief Static Images on Panasonic TC-P65VT50

 

My apologies, I only used the home page search feature yet it returned nothing exact. I just tried the "Search This Thread" and that worked. Now I see others with this same problem, and I'm going to do my best to learn from their experiences.

 

Here's a short video of the problem (not at its worse - just the only quick way to get it on camera).

 

Hello thread posters! I have been trying to make sure this hasn't been already discussed by searching every known combination of "blue pixel image retention" (using the home page search feature), but to no avail. Is it possible that I am the only one? Maybe I should start a new thread for this very reason.

 

The problem is when ever there is a static item on the screen for about 2-3 minutes, and then you move that item, the spot where the image used to be will have a ghost image of what was there previously made out of blue pixels only. And, these pixels twinkle and then fade away gradually over the next 5-10 seconds. It seems to happen more with bright images being moved away to just showing black screen. This seems to show the problem at its extreme.

 

Warranty ran out exactly 2 months ago, and I'm having it accessed this Friday (tomorrow) by a certified Panasonic dealer. At this point I'm pretty upset, and can't believe my luck:(

 

Anybody else hear about this problem?

 

Thanks in advance for the help!

 

Donnie


Edited by FLUX CAP - 1/24/14 at 11:44am
post #13320 of 13486
search for user dvdmd1 - he was very upset by what sounds like a similar problem. He's not willing to share how he got it fixed so as not to help Panasonic out, but I believe he will privately help you get to where you need to go as I think he has done with others with problems of that description - he seemed like a good guy.
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