Official LG XXLM7200 Thread - Page 18

Originally Posted by FourWude 

Hello everyone, I'm the owner of Display Lag and just wanted to chime in. Yes, the Lag Tester results can be reproduced, even among two of the same model display. For example, I tested two different versions of the Samsung UN60EH6000 and they checked in at 47ms and 48.2ms respectively. The device has been fairly accurate based on my testing and I'm very pleased with it. I am following the same standard for LCD/LED HDTVs as other sites, by grading only the bottom bar which contains the most lag. Some HDTVs did not give me fully consistent ratings, and therefore I gave the full spectrum of measurements picked up from the Lag Tester (for example, the Samsung PN51E7000 gave me readings between 40-51ms,

Originally Posted by tgm1024 

I'm not sure why this would be unusual----I'd love to see how you designed the tester. Remember, that lag disparity is suspiciously close to 1/120th of a second (8.33ms). The way displays work, even if the display has internally precisely the same lag every time you test it, if your tester is reacting to the output frame optically, variations are more likely a result of the input landing 8.33-X (X is small) at the display.

BTW, for those confused by how much greater the 40-51ms is from 8.33ms, this is the result of the way displays function. You can think of the processing as a form of conveyor belt of stages 1/120th of a second apart. I'm not sure of what the design team did at Samsung for plasmas, but if this is broken down as 120 complete frames a second (with 1/600th second being the region updates---plasma's are different---and the 1/120th is a clean multiple of 1/600th) then you'll develop this gap depending on when the stimulus from your tester arrives.

That's if you've got some optical sensor on the display guaranteed at the starting position of the display, and I imagine that's further confused (I'm not sure if it is) because plasmas are not "sample and hold". How is your tester configured?

So who is Leo and what has he done for us? Amongst other things, Leo makes driving simulators for clients and is of course only interested in those displays that exhibit the smallest amount of lag to make the experience as close to real life as possible. Unsatisfied with the traditional camera method, Leo set about producing a device that could actually measure lag reliably and accurately using his not inconsiderable engineering nous. Step forward the LagTest. The device works by producing a standard 1080p60 DVI/HDMI signal with alternating black/white segments and measures the delay between the first line of the frame with white segment leaving HDMI transmitter and the photosensor detecting a change in screen light output. LagTest dynamically samples full black and white levels and sets detection threshold at 25% of full white. Strictly speaking, it measures input lag plus the panel response time which is what we should really care about given we can’t react to action on screen without first seeing it! The delay measurements are accurate to +-0.1 milliseconds which is far far better than the accuracy derived from the old camera method. It’s devilishly simple, in essence, like all the best things but we believe we can now give you gamers the most definitive results out there.

Originally Posted by FourWude 


I didn't design the tester

All credit for the tester goes to Leo Bodnar. He designs driving simulators for clients in Europe. This device is the same way that AVForums measure input lag in their display reviews now, and I'm merely adopting the standard that they set forth. This is their description of the tester from one of their reviews:

Originally Posted by FourWude 

Just wanted to give you guys a heads up, I redesigned the database since a lot of people requested the ability to sort displays based on their lag rating. I hope this is of use to you all!

http://www.displaylag.com/display-database/#participants-list

Originally Posted by JSmith7309 

I have noticed in the settings that people have put up that the tru motion is off. I tried that but my picture looked terrible when watching sports. Why is that?

Originally Posted by JasonInVegas 

A) I just got one so stand by for a review
B) LG rep was in-store so I asked her about performance...she said should be near identical to 55" 7600series.
C) I asked why 7200 model number and she explained it had to do with the panel specs...how they keep them organized...she said not as big a difference as 7600 to 8700...
D) also said we won't see a price break until February, 13.

Originally Posted by JSmith7309 

Thanks PerfectCr for the specs I had my backlight too high. Everything else was very close except for the Sharpness. The bottom line on ESPN looked a lot clearer with it around 30 for both. I also had my dynamic contrast on medium cause it made the blacks blacker, didnt like it off. Also turned the Tru Motion off and so far so good. But my Real Cinema is greyed out I cant change it! Anyone know why?

Originally Posted by CoreyM 

BB usually run their weekly sales Sun-Sat so it's possible LG authorized a lower MAP but it won't happen until the next sale cycle?

Plus there's price protection... 30 days/60 with Silver? Might be easier to pick it up before a drop.

Originally Posted by PerfectCr 

That's what I did. I am Silver so I am going to watch the price closely for the next while!

Originally Posted by CoreyM 

You're well on your way after you buy this set. lol.

I'll have to buy a new washer and dryer very soon so I'll be good to go either way. Still have 2 weeks left, not sure if I get the 60 day price protection if my silver status lapses, and if I can buy on say the 26th and still schedule a free calibration.
*shrug*

Originally Posted by tbook 

Just tried. Doesn't even see (recognize) the *.mts video on the stick. However if you simply rename the file extension from *.mts to *.mp4 it does recognize it and plays it fine.

Originally Posted by FourWude 

Can anyone with the 60LM7200 comment on how it is for gaming? It got a great score on my website with the Lag Tester (rated 35ms), and I just wanted everyone's feedback when it comes to that. Thanks!

Originally Posted by raynist 

How do I set the picture settings for 3D?

I can tell a big difference when watching 3D as the picture is much much brighter when it is in 3d mode. Too bright.....I made the same changes to the picture backlight,contrast, brightness when in 3d in the isf exper 1 setting but there is still a major difference.

Thanks
Ray

Originally Posted by tgm1024 

(entering time machine and zipping to the future...)

Well we're now at Feb 13. No price change yet. Still right at too much dollars and no cents. I'm betting it won't happen today and that the LG rep was full of @#$%.

Originally Posted by PerfectCr 

Very easy. Just start playing a 3D source, then adjust the settings while viewing a 3D source. Then it will automatically load those settings the next time 3D content is played.

Originally Posted by PerfectCr 

I picked this up at BB this weekend. The 60" inch version (60LM7200). I'll post my settings below. First let me give a few thoughts....

I am blown away by the quality of the picture. 2D HDTV viewing is phenomenal. Coming from a Sony 55" NX720 (no slouch in PQ department either) I can say that the this set BEATS the Sony hands down. The build quality is excellent, and I like the design of the base. Where this HDTV really shines for me is 3D viewing! Having dealt with Active 3D technology from Sony for the past 1.5 years, I can definitively state that Passive 3D is BETTER for me. With Active the crosstalk was horrendous. The glasses were heavy, had to be charged, and gave me headaches due to the active shudder flashing. Plus, the crosstalk was present across the top of the screen, rendering 1/3rd of the picture blurry. This sucked for games and for watching ESPN 3D where the score text is kept. I've already watched Avengers 3D and Tron Legacy 3D on this LG and it's a brand new experience. I can actually enjoy the movie now. Everything is in focus and comfortable to watch. My wife and kids now WANT to watch 3D again! 2D viewing is a very pleasant experience, the best I've seen. The clarity is amazing.

The TV interface is very well organized, and quick. The remote is easy to use (if you've used a Wii then you can use this) but I setup my Logitech Harmony remote so I don't really use the "magic" remote anymore. In short, I am very pleased with this LG set (my first LG!), the WAF is off the charts, and my kids love watching 3D again.

My settings: I'd be interested to see more people post their settings. Tons of pages of posts but I think there have only been 3 or 4 posts with settings. I used this thread and the CNET settings for the 7600 model to guide me.

Picture menu:
Energy Saving: Off
Picture Mode: Expert [1 or 2]
Backlight: 50 (for 3D viewing, Backlight is 80, otherwise all the same )
Contrast: 80
Brightness: 50
H Sharpness: 10
V Sharpness:1 0
Color: 50
Tint: 0
Aspect Ratio: Just Scan

--Expert control menu--
Dynamic contrast: Off
Super Resolution: Off
Color Gamut: Standard
Edge Enhancer: Off
xvYCC: Off (grayed out)
Color Filter: Off
Expert Pattern: Off (grayed out)
Gamma: 2.2

--White Balance submenu--
Default

--Color management system submenu--
Color Temp: Warm
Default (rest of settings)

--Picture Option menu--
Noise reduction: Off
MPEG Noise Reduction: Off
Black Level: Low
Real Cinema: On
Eye Care: Off (grayed out)
LED Local Dimming: Low (I experimented with each setting. Medium seems to be same as High. High crushed blacks too much for me, but Low is a perfect balance)
TruMotion: Off (any other setting gives me the SOE)

Originally Posted by caspertodd 



LOL, she meant Feb 2013 I'm sure. I'm anxiously waiting patiently for the price to drop a little so I can pick this up. I guess Best Buy will price match 30 days after the purchase too.