Official Sony XBR8 Series Owner's Thread - Page 8

Light sensor is under general setup settings on page 53.

^^ Oh yeh. There it is. ThX.

I know probably just personal taste, but on the XBR8; Mugen do you recomment the 'Black Corrector' and 'ACE' on at the same time? How about those 2 features inconjuction with the Light Sensor feature. How would you set your XBR8 (if you bought one), in regards to the features mentioned. Love to hear your thoughts.

Sorry to be so needed (all the time), LOL. Not just to you Mugen, but to everybody. Can you believe I kind of forgot to check the Light Sensor option when I was at Sony Style just this past Thu.

Thanks for the replies on Game Lag with this set. On my current SXRD, I have everything turned off on the input that I game with the exception of one or two. My ISF calibrator which is also an avid gamer suggested to get the best picture turn off all the modes, but that if you want to have a few on that it would not hurt that much.

I would assume, that having game mode off on the Xbr8 and then go through each of the enhancers and turn them off one by one, keeping the thing that makes the Xbr8 special left on.

I wonder why they would turn off the feature on game mode if it does not impact peformance? It still bugs me that even with game mode off and not knowing if they turned off any of the processing funtions that they noticed more lag than other sets.

I hope an owner or a website looks into this a bit more. I want to ensure that this set is going to deliver for my main purposes before I plunk down close to 8grand.

I hear you on this one, I cant imagine that game lag would be a symptom of a dynamic LED backlight, as I said it, it isnt changing the source signal, but I would like to have this confirmed by RGB32 or one of the other current owners.

for 7 grand, it isnt acceptable that this tv will negatively affect gaming with its selling feature (led).

Just talking off the top of my head here, but it wouldn't surprise me a bit if the XBR8's localized dimming function introduced some processing lag. Think about it for a minute. From instant to instant, the XBR8 has to compute which sectors of the back light need to be dimmed, how much they need to be dimmed, and also what colors they need to be. This doesn't strike me as trivial process, and probably involves some serious number crunching.

In a way, with local dimming engaged, the XBR is really having to process two screens: the LCD screen; and the LED back light "screen."

^^ bhollis,

What you brought up, is what someone else brought up about the a950. About since the TV being LED, it would??? have a little more input game lag, than a CCFL baclit LCD???

by this logic, would that not effect movies as well? Wouldnt we see the leds 'catching up' to the scenes whether they be light or dark? It doesnt make sense, the led process should be as instant as the processed governing standard lcd.

Can someone please let us know if there is game lag with the setting below

Game Mode: Off
LED Dynamic Control: On (Standard/Low)
Cinemotion: Off
Motion Enhancer: Off
all other filters off

I and many others don't use any of these advanced picture options.

I made a post awhile back of where I think the settings should be around.
http://www.avsforum.com/avs-vb/showp...&postcount=122

Seriously people, don't take this input lag thing too seriously. I for one pay no attention to it whatsoever. Turning off ACE, motion enhancer and local dimming would have a serious impact on the beauty of the game you are playing.

Unlike movies that might start looking strange and artificial with the extra processing turned on games benefit from it immensely. Input lag on the other hand would most likely only have a negative effect on a fraction of games. Most shooters are so brain dead easy that it wont effect them unless you are playing them online against human opponents. Because only online would fraction of a second decision making make a difference, computer controlled opponents rarely if ever need that kind of precision to take down.

Really, the only kind of games affected are oldskool frame by frame reaction time games like Mega Man 9 or games like rockband or Guitar Hero, which actually have a mode that can compensate for input lag.

So relax and set everything on max, like I usually do.

I would disagree. Input lag can affect a lot of games. I've also noticed problems on sports games, for example swinging the bat (on other sets with input lag, haven't tried an xbr8 yet). For other than just casual gaming, it's a problem, and can really make you play worse.

My guess is that the tv synchs the LED backlight with the LCD panel, so that one never gets ahead of the other. But then, that would mean that whichever takes longer to process the signal becomes the "bottleneck" and limits the overall response time. Hence, the best way to maximize response time is to minimize processing time for both the LED backlight and LCD panel. Which is why, IMHO, game mode on the XBR8 not only turns off most of the image processing, but also disables localized dimming on the backlight.

As for your question about affecting movies as well, I suspect it does. And the net result, as we're all used to with HDTV's, is that the audio may get slightly ahead of the video.

In other words, my guess is that localized dimming on the XBR8's is just another source of video processing delay, similar to the delays that result from image scaling, or other kinds of video processing.

Of course, it's also possible I'm completely wrong on this . . .

Check this out! The new ultra high end sharp models are apparently doing things with their backlight that I thought the XBR8 were doing.

They can actually dim and control each individual color component of each their RGB cluster to form colors, or as one puts it, display a low resolution coloured version of the image with the backlight.

The XBR8 can only dim and control an entire RGB cluster collectively to only form a low res black and white version of the image. Frankly I am kind of disappointed to hear this, I thought the TRILUMINOS that SONY was so proud of was more than just another fancy way of doing what Samsung is doing by just using white LED's.

Maybe the 2009 SONY models will do what sharp is going to do this year, and hopefully for much less than what Sharp plans on charging.

Where's all the feedback from the owners? : )

does anyone actually own this tv yet.

well i think there are 2 reasons:
1. not that many owners yet

2. the quality of this thread i feel is poor. i recently went to read a couple of the owner's threads in the sticky section to see what made them different that might explain why they are there.

right off the bat, it was apparent the thread starter put a great deal of effort and thought and diligence in providing a truly useful and informative initial post : including manufacturer's information, photos, links and data. they are updated periodically as new information is provided, such as updates, msrp price changes, support and firmware links, etc. they are truly useful.

so this type of thread starter seems to engender a recipricol response from the fellow owners and non owners alike, with a much better focus on the thread's intent and purpose.

i'm still hopeful that this thread's starter will look at those threads and provide the same type of approach here. it's unfortunate, i think that 2 higher level sony models, this xbr8 thread and the xbr6 thread, are the least helpful of most all in this forum. i think they deserve more from an owner that is more interested in sharing the joy rather than getting some kind of ego boost from starting such a thread.

as my signature says: iirc afaik fwiw imo

TVbc

^^ I sent a PM to vangor(komm) the thread starter, on Thu to see the status of his replacement TV, but I have not heard back from him yet.

I might be pretty soon. Just need to make a call into Sony's tech support about the Pro 120Hz Motionflow "pixelation" problem and see if there's a fix for it. Hopefully there is.

Pretty close to actually pulling the trigger on this unit a few hours ago while i was at the Sony Style.

keep us posted with a review if you get one.

Definitely will.

I found your post quite interesting, and it got me to doing some web surfing to try to learn more about Sony's triluminous technology. Surprisingly few details available, but based on everything I could find, the purpose of the triluminous backlight is not to produce color (not sure why you'd want to do that with the backlight, since color is provided by the LCD panel), but rather to provide as perfectly white a backlight source as possible--i.e., a backlight containing the full gamut of colors. So instead of using white led's that aren't really white, Sony's triluminous technology mixes the colors from red, green and blue led's to produce and maintain a white backlight source.

I must agree, why start a thread for a tv when the thread originator doesn't own the tv. What we need is more feedback from folks who actually own this set and can provide "hands on" experience, pics, a personal review with positives and negatives, and not theory and conjecture from people who don't own this tv.

Speaking of which, isn't there two people who own this TV that posted in this thread a while back?
I wonder where they are?

Maybe they just enjoy their new toy and don't want others to ruin their experience! Therefore, they stop hanging around here.

That is what I would do, unless I was unhappy with my purchase there would be no point in hanging around after having pulled the trigger.


I know, but intuitively there would have to be advantages to having a backlight that produces colours instead of just varying intensities of white. It should reduce blooming and result in better colour purity. The Sharp is doing some other really funky things as well, like have side firing backlight that results in a ultra thin panel that at the same time is also local dimming. The XBR8 has only white backlight and a very thick panel, even by last years standards.

The new Sharps are making the XBR8 look low tech in comparison, not what one is comfortable with happening when spending so much money on what was supposed to be the most advanced television in 2008. If one can afford to go for the 55XBR8, I think one should consider shelling out a few more thousand dollar bills and go for the 52 Sharp.

I've had mine for a week and a half. I'm happy with it. I have posted on possible HDMI issues, black levels, inaccuracy of red/green, viewing angle, mounting hole locations. I have not and won't have a professional calibration. I have a colorimeter, but have not had a chance to do any objective measurements and adjustments.

This thread has been lost to petty bickering over the tired plasma vs. LCD and Sony vs. Samsung arguments, so I don't waste a lot of time with it.

I think it would be great if some other owners would post their impressions, settings, problems, but I'm not going to be a salesman, trying to convince others that they should get this TV, just because I have it.

Regards!

Hi jsteinhauer. You said you posted on some POSSIBLE issues. I just searched your user name and all three XBR8 threads and could not find what your talking about. Can you please point me (and others) in the right direction, where you posted this info? Seriously, thank-you for taking the time to pull away from your beautiful new TV.

Possible issues is what I meant. They are not issues, if they are only problems for me. An some "issues" are more important for others than for me.

Black is nearly the same as the black bezel, but not quite. It looks great to me; I have the dark gray wall behind my display illuminated. This improves the appearance of black. Shadow detail is exceptional. There are others in this thread for whom anything other than true black is not acceptable in a display. I have backlighting set to 1, not minimum, and leave the LED dimming set to STANDARD. I calibrated by eye using DVE, and I can set the contrast to maximum without clipping whites, but I leave it at 90 (out of the box). The brightness and backlighting were set to high out of the box (as expected) and I turned them down. However, using DVE and filters, by eye only, the reds and greens are further from accurate than I can achieve by eye with my XBR2. This is not a big deal to me. It could be a dealkiller for some videophiles.

With some Blu-ray and DVD titles, I have some AV dropouts during some playback and some menus. I suspect, but can not confirm, that this is an HDMI issue. I have obtained some better HDMI cables, but have not tried them yet. It could also be a hardware issue with my AVR or my BD player, but I did not have this problem with my XBR2 display.

Viewing angle was reported to be 45 degrees, but I think deterioration in black begins at about 25-30 degrees and gets severe at about 45 degrees.

Mounting hole positions was not a problem; it was merely a comment.

I have not posted anything objective, nor have I seen anything objective from owners. I have not posted pictures nor will I. Digital photos posted on the internet don't really add much.

bhollis, your post has me a bit confused. I am no expert, but I do understand color mixing and I don't follow the logic that you can mix red, green and blue to make white. Did I miss something in your post?
Thanks.....Rich

toolwarrior,

If by color mixing you mean mixing of pigments, then I can understand why you're confused. Combining pigments is different from combining different colors of light.

If you mix the primary colors of light together--red, green, and blue--you get white.

http://www.rgbworld.com/color.html