Which Current Panasonics Have Experienced a MLL Drop Around the 250-300 Hour Mark? - Page 2 - AVS Forum
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post #31 of 52 Old 10-17-2013, 03:38 PM - Thread Starter
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so, basically, once the 50 and 60 series drop to their lowest values, they stay there for good?

and smaller sized panels start out higher and drop more than larger panels, which start out lower to begin with?

and does it matter which month my S60 was built in? (I have an April 2013 build, which I believe is quite early.)
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post #32 of 52 Old 10-17-2013, 07:44 PM
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Maybe, my 5080 with 19,000hrs still pulls 0.005...
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post #33 of 52 Old 10-29-2013, 03:21 PM - Thread Starter
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post #34 of 52 Old 10-29-2013, 03:27 PM
 
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^Congrats. wink.gif
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post #35 of 52 Old 10-29-2013, 03:39 PM - Thread Starter
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Quote:
Originally Posted by vinnie97 View Post

^Congrats. wink.gif

I agree it's a very good number, but I'm not sure I've experienced a significant drop since the first meaningful reading I got was here (0.0033 fL at about 50 hours). The numbers higher than that were simply the result of visible IR after many grayscale runs. At 150 hours, it was at 0.0028 fL and now it's essentially the same at 300 hours.

I guess the next question is whether it will drop a bit more at 400 hours and then 500 hours and so on...
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post #36 of 52 Old 10-29-2013, 04:23 PM
 
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Anxiously awaiting your readings that I'm sure will come. smile.gif
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post #37 of 52 Old 11-06-2013, 07:50 PM - Thread Starter
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Around 400 hours now with readings steady at 0.0025-0.0026 fL. So, no difference from 300 hours (prior range was 0.0025-0.0027 fL).

I wonder if this is the final MLL or if I need 1000 hours or more for any further (significant) drop to occur.


At what hour mark did the biggest drop occur with the calibrator Buzzard's VT60?
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post #38 of 52 Old 11-06-2013, 11:02 PM
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I think black level tapers off in parallel with brightness

 

If you measured again at 100,000 hours it should be around half :eek:

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post #39 of 52 Old 11-24-2013, 04:30 PM - Thread Starter
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post #40 of 52 Old 11-24-2013, 04:46 PM
 
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^Nice!
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Originally Posted by milagros View Post

I think black level tapers off in parallel with brightness
Not necessarily true...see some Kuros and many Pansonic models circa 2009-2011.
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post #41 of 52 Old 12-23-2013, 03:46 PM - Thread Starter
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Quote:
Originally Posted by PlasmaPZ80U View Post

I'm at 300 hours with MLL at 0.0027 fL.

Oddly enough, I'm back at 0.0027 fL at ~1,050 hours. I'll have to double check at another time to make sure the testing method was ideal. However, the readings were steady at this value.
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post #42 of 52 Old 12-23-2013, 04:28 PM
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Hi, Plas.

What meter are you using that measures accurately down to 0.0003 cd/m^2 (0.0001 ftL)? And how different does the picture look when the black level it is that much higher. smile.gif

Larry
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post #43 of 52 Old 12-23-2013, 05:00 PM - Thread Starter
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Quote:
Originally Posted by LarryInRI View Post

Hi, Plas.

What meter are you using that measures accurately down to 0.0003 cd/m^2 (0.0001 ftL)? And how different does the picture look when the black level it is that much higher. smile.gif

Larry
the spectracal c6 colorimeter

It doesn't look any lighter. My guess before measuring was that it was actually a bit darker.
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post #44 of 52 Old 12-23-2013, 06:25 PM
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^^

The Klein K-10 is good down to 0.0002 cd/m^2. I think the C6 spec shows that it is only reliable down to 0.002 0.001 cd/m^2, IIRC.

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post #45 of 52 Old 12-24-2013, 09:09 AM - Thread Starter
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Quote:
Originally Posted by LarryInRI View Post

^^

The Klein K-10 is good down to 0.0002 cd/m^2. I think the C6 spec shows that it is only reliable down to 0.002 0.001 cd/m^2, IIRC.

Larry

where did you read that? it should be the same as the D3
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post #46 of 52 Old 12-24-2013, 03:18 PM
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Quote:
Originally Posted by PlasmaPZ80U View Post

where did you read that? it should be the same as the D3

The D3 has a lower limit of 0.003 cd/m^2 according to the ChromaPure web site. Tom says about the i1 Display Pro (aka i1 D3) "The results of this test confirm that the Display 3 reads down to 0.003 cd/m2, or 0.001 ft-L."

I was mixing units in my head -- sorry.

Larry
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post #47 of 52 Old 12-24-2013, 04:42 PM - Thread Starter
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Quote:
Originally Posted by LarryInRI View Post

The D3 has a lower limit of 0.003 cd/m^2 according to the ChromaPure web site. Tom says about the i1 Display Pro (aka i1 D3) "The results of this test confirm that the Display 3 reads down to 0.003 cd/m2, or 0.001 ft-L."

I was mixing units in my head -- sorry.

Larry
ok, 0.001 fL is plenty low enough to measure a s60
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post #48 of 52 Old 01-02-2014, 08:34 PM - Thread Starter
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Quote:
Originally Posted by PlasmaPZ80U View Post

Oddly enough, I'm back at 0.0027 fL at ~1,050 hours. I'll have to double check at another time to make sure the testing method was ideal. However, the readings were steady at this value.

It appears the MLL is rising still:



@1134 hours (and brightness is actually one click lower, 0 from +1... it turns out it was a click too high before today's re-cal)

http://www.avsforum.com/t/1461177/official-panasonic-s60-series-discussion-thread/4260#post_23785326
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post #49 of 52 Old 01-02-2014, 09:11 PM
 
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Ugh...you're at 0.0031 now? Is that correct?
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post #50 of 52 Old 01-03-2014, 09:26 AM - Thread Starter
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Originally Posted by vinnie97 View Post

Ugh...you're at 0.0031 now? Is that correct?

yes
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post #51 of 52 Old 01-03-2014, 09:41 AM
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Plasma,

If you're doing dark room viewing, are you seeing this rise within content or is it too subtle?

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post #52 of 52 Old 01-03-2014, 09:51 AM - Thread Starter
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Plasma,

If you're doing dark room viewing, are you seeing this rise within content or is it too subtle?

it's starting to show, but even 0.0031 is quite dark (thought not as dark the as the best value of 0.0024 I measured around 600-700 hours)
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