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I've watched that video a bunch of times now. I can count 6 horizontal at the bottom, but at the top horizontal it becomes hard to see at the top right corner. Granted, by the time the white dot is to the spot where I can't tell anymore, I'm already at 5. I also got vertical of 7. It would be nice the the AVForum reviewer posted a video, otherwise this debate will probably go on for a long time.
So I asked the reviewer and he also counted 5 across and 4 down using a test video from Youtube (I'll presume the same AVS one)
 

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Discussion Starter · #22 · (Edited)
I ran the AVS test last night, and it does have a 5 wide zone array, but I disagree on the 4 down. I took some videos, and a couple with the camera set up to primarily measure the vertical zones. I think there are more than 4 vertical zones, but I suspect my opinion will be questioned, and frankly the results are confusing because the zones at the top appear to be taller than the zones at the bottom, and the zones at the bottom appear to be very short. I think I am counting 7 or 8 vertical. Explain to me what I am missing. I will make a Youtube account and put the videos on.

For the horizontal, what was happening when I was counting 6 was:
1) zone 1 turned on (left most, 1 zone cumulative)
2) zone 1 on, zone 2 on (2 zones cumulative)
3) zone 1 off, zone 2 on (2 zones cumulative)
4) zone 2 on, zone 3 on (3 zones cumulative)
5) zone 2 off, zone 3 on (3 zones cumulative)
6) zone 3 on, zone 4 on (4 zones cumulative)
7) zone 3 off, zone 4 on (4 zones cumulative)
8) zone 4 on, zone 5 on (5 zones cumulative)
9) zone 4 off, zone 5 on (5 zones cumulative, but I was counting zone 5 a second time)
So, 5 zones horizontal.

For the Kodi system info, images are attached.
 

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Why are you guys so unsure about the number of dimming zones in the XBR75X900E being only 20, as reported by www.avforums.com, when they also found 646 dimming zones in the XBR65XZ9D and 96 dimming zones in the XBR75X940D, numbers widely accepted and re-confirmed by others ?

As long as the FALD does its job properly and unobtrusively, that's what counts.
However, i agree with all of you : the more dimming zones + best FALD implementation > the happier i am and the better the picture should be !
 
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Why are you guys so unsure about the number of dimming zones in the XBR75X900E being only 20, as reported by www.avforums.com, when they also found 646 dimming zones in the XBR65XZ9D and 96 dimming zones in the XBR75X940D, numbers widely accepted and re-confirmed by others ? But if you say 646 was the correct number then I guess that adds a little more weight to the AVF count :D.

As long as the FALD does its job properly and unobtrusively, that's what counts.
However, i agree with all of you : the more dimming zones + best FALD implementation > the happier i am and the better the picture should be !
I have seen zone count differences between 'respected' reviewers in the past so I guess errors happen from time to time. AVF have 34x19 = 646 whilst HDTV Test have 36x18 for 648 both for the 65" model, just to give one example.

I ran the AVS test last night, and it does have a 5 wide zone array, but I disagree on the 4 down. I took some videos, and a couple with the camera set up to primarily measure the vertical zones. I think there are more than 4 vertical zones, but I suspect my opinion will be questioned, and frankly the results are confusing because the zones at the top appear to be taller than the zones at the bottom, and the zones at the bottom appear to be very short. I think I am counting 7 or 8 vertical. Explain to me what I am missing. I will make a Youtube account and put the videos on.
I definitely agree it is tricky, I counted 6 myself the first time on the one from an angle and also something like 7 vertically (maybe 8 now :rolleyes:). But in this video from the front I only counted 4 vertically
Can you make one from this angle? (on yours I also count 8 or even 9 and that would also explain the abillity to keep the black bars dark which I can't really picture with 4). I'll post your side vid and perhaps it will even be ammended in the review if he agrees there are more :cool:.
But looking at the head on video and seeing the whole bottom illuminated on the instruction screen (almost covering a quarter of the screen) when the text is quite far from the bottom 4 is looking more and more correct?
 

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Discussion Starter · #26 ·
I'm not really as worried about it as I may appear, I just want to know how to correctly measure the zones. My data does not appear to match or make sense compared to the accepted data.
 

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Why are you guys so unsure about the number of dimming zones in the XBR75X900E being only 20, as reported by www.avforums.com, when they also found 646 dimming zones in the XBR65XZ9D and 96 dimming zones in the XBR75X940D, numbers widely accepted and re-confirmed by others ?

As long as the FALD does its job properly and unobtrusively, that's what counts.
However, i agree with all of you : the more dimming zones + best FALD implementation > the happier i am and the better the picture should be !


Did you mean 65inch 900e? Not seeing a review of the 75nch version.
 

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Sorry for the mistake in the set's size, but i imagine being able to count exactly the number of dimming zones used in the XBR75X-Z9D as being exactly either 646 or 648 FALD zones would be very difficult and besides a difference of only 2 LEDs would be trivial insofar as its performance is concerned.
 

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Sorry for the mistake in the set's size, but i imagine being able to count exactly the number of dimming zones used in the XBR75X-Z9D as being exactly either 646 or 648 FALD zones would be very difficult and besides a difference of only 2 LEDs would be trivial insofar as its performance is concerned.
I'm sure they didn't count individual LED's (obviously) so that it ended up 2 apart was merely a coincidence ;).But you're off by 2 entire zones (646 or 648 is not the point, it's the 34 vs 36 when you can take all the time in the world. If they both had 18 vertically we'd be talking about 36 'zones' instead of 2 and these figures go around the world). I'm sure I can find another example on a far less extreme zone count ... (I can already remember a Panasonic with only 24 zones or thereabouts that got different zone counts in different reviews).
 

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In general reviewers are right about the zones. Only in rare cases they are wrong. In the ZD9 each LED is a zone which makes it more difficult to get the count right. That TV is not a good example anyway since 99% of FALDs have traditional zones (with a number of LEDs in each zone).
 

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we need more XE900/X900E owners! more settings/stuff/information/reviews/ real life impressions/Video's & tests !
why is it taking soo long:confused:
 

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Sony X900E looks like a real decent TV.

I have a 2015 Sony 4K HDR 55X850C frame dimming edge lit with a remarkably good panel and very little edge bleed as these TV's go .

I'm wanting the next upgrade to be a wow upgrade and longer than the usual 2 years in this room which brings to mind the Sony Z1C OLED or 9ZD FALD or X930E "edge lit FALD" with the X1 extreme processing depending on the variables .

That said I wouldent mind some Sony 55X850C vs Sony X900E and Sony X930E input either ,the Sony 9ZD and Sony OLED outcome vs Sony X850C is a given that they would be the wow upgrades I may want.
:laugh:
 

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Sony X900E looks like a real decent TV.

I have a 2015 Sony 4K HDR 55X850C frame dimming edge lit with a remarkably good panel and very little edge bleed as these TV's go .

I'm wanting the next upgrade to be a wow upgrade and longer than the usual 2 years in this room which brings to mind the Sony Z1C OLED or 9ZD FALD or X930E "edge lit FALD" with the X1 extreme processing depending on the variables .

That said I wouldent mind some Sony 55X850C vs Sony X900E and Sony X930E input either ,the Sony 9ZD and Sony OLED outcome vs Sony X850C is a given that they would be the wow upgrades I may want.
:laugh:
believe me.. you will see that Wow! upgrade.. with any tv you mentioned. I do not want to offend you, but comparing the x850c with x900e is like comparing a rotten banana with a shiny fresh exotic apple.:p

a few months ago I went to a visit to buy a second hand 55" x850c for like $800 and the first thing I noticed when checking out the x850c were the blurry spots across the black screen (heavy duty DSE) upon turning the tv on..and i didnt liked the picture quality at all in game mode and inputlag was high, the seller also had a PS4 Pro like me so i took Battlefield1 with me and test that game out.. this game looks beautifull on my 6yr old plasma but upon testing it on the x850c i was shocked how ugly and blurry it looked! looked like upscaled from 720p or even lower and the colors looked dull and greyish, drove 300km for nothing. :rolleyes:

normal 4k image video and TV channels will be undoubtedly good but technically gamingwise it was a disaster
 

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believe me.. you will see that Wow! upgrade.. with any tv you mentioned. I do not want to offend you, but comparing the x850c with x900e is like comparing a rotten banana with a shiny fresh exotic apple.:p

a few months ago I went to a visit to buy a second hand 55" x850c for like $800 and the first thing I noticed when checking out the x850c were the blurry spots across the black screen (heavy duty DSE) upon turning the tv on..and i didnt liked the picture quality at all in game mode and inputlag was high, the seller also had a PS4 Pro like me so i took Battlefield1 with me and test that game out.. this game looks beautifull on my 6yr old plasma but upon testing it on the x850c i was shocked how ugly and blurry it looked! looked like upscaled from 720p or even lower and the colors looked dull and greyish, drove 300km for nothing. :rolleyes:

normal 4k image video and TV channels will be undoubtedly good but technically gamingwise it was a disaster

Thanks much I am wondering if the move up to an X900E from a lucky good panel X850C outside of gaming is plausible for the wow factor or maybe the X930E or 9ZD instead on the LCD side .

I never game on X850C in this office /study/bdrm we have a dedicated DIY custom 1080p ultra game PC on a 1080p Sony Bravia here and the 64f8500 plasma out front but the X850C is *my primary TV .

Decent 4K gaming on a PC at playable frame rates is spendy .


Upscaled 1080i/1080p and 720p and DVD /BD looks real decent on * this X850C with a decent panel so does 4K HDR and some 4K HDR which can look real good or like rubbish on any given HDR production .

The latest 2 (Oct-Dec 2016) firmware upgrades significantly upgraded the X850C all in all including HDR processing and more brightness by about 100 NIT more and it shows .

I got a very good panel in mine so it may that your visited X850C panel is not that good and or the owner had it way out of a decent calibration /white balance /settings aside from what sounds like a lousy panel I don't have .You have to know how to use an X850C in BT 2020 color space not the BT709 pre sets and BFI motion >clearness must be OFF or it looks grey and dull even at 1 :)

. A lot of X850C had bad panels or barely passable panels and looked like it thats why aside from Q4 pricing I waited for a late production X850C model when all that was getting better instead of an arguably better and more spendy Samsung JS8500 I might like better ,there were some of those X850 I wouldent touch with a 10 ft. pole or traded back in straight away for the Samsung JS 8500 .:p


OTOH the X900E would have likely be my choice if it was my first 4K HDR TV or around at Q4 2015 it has basically the same decent X1 processing as mine and a different and brighter FALD back light so all that is a legitimate set of upgrades over the X850C .


I would like more than 900-1000 NIT peaks on an LCD which agin leads me to the X930E X1 xtreme or 9ZD X1 extreme or maybe instead the Sony 9ZD at whatever brightness peak it has but I will certainly look at the X900E it may be a sleeper .
 
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