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Author Topic: Optimist  (Read 2141 times)

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Mysteryman

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Field Marshal Dr. Opti

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Re: Optimist
« Reply #1 on: 22 October 2010, 14:24:07 »

Thanks Mr Steve......buts that's one of those inferior LCD jobbies....and only 50hz too.

Plasma is far superior.....everyone agrees with me on this point... ::) ::) ;)
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Omega_Dan

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Re: Optimist
« Reply #2 on: 22 October 2010, 14:25:35 »

TV's are getting mega cheap now. Most decent 32in's are that much.
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Mysteryman

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Re: Optimist
« Reply #3 on: 22 October 2010, 14:26:10 »

Quote
Thanks Mr Steve......buts that's one of those inferior LCD jobbies....and only 50hz too.

Plasma is far superior.....everyone agrees with me on this point... ::) ::) ;)


OK, I won't buy one then. :)
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Field Marshal Dr. Opti

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Re: Optimist
« Reply #4 on: 22 October 2010, 14:29:18 »

Quote
Quote
Thanks Mr Steve......buts that's one of those inferior LCD jobbies....and only 50hz too.

Plasma is far superior.....everyone agrees with me on this point... ::) ::) ;)


OK, I won't buy one then. :)



Good idea......and get my post count back while you're at it......It's all your fault......... it was lost on your Wakefield thread last night..... ::) ::) ;)
« Last Edit: 22 October 2010, 14:30:22 by optimist »
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Mr Skrunts

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Re: Optimist
« Reply #5 on: 22 October 2010, 14:50:16 »

I would be intereted to know people's thought's on the new 3d TV's.  Am happy with my 46" Plasma bought in January, but mainly use it on the PC, only hiccup is a bit of pixelation on high speed video and interestliy enough only on the Bravo channels, but Jimbob did mention this on larger TV's so I accept that.

I now fancy replacing this with a larger screen whether it be LED, LCD or plasma yet I dont know, but will be January at the earliest, Having a plasma I will probably try one of the others, But at least Panasonic do the 3D models in LCD and Plasma so they can be compated side by side.

Next one I can get away with a 50"  But need to know I can plug the PC into with a 3D card and use the screen for TV and PC in 3D.
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Mysteryman

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Re: Optimist
« Reply #6 on: 22 October 2010, 14:52:35 »

Quote
Quote
Quote
Thanks Mr Steve......buts that's one of those inferior LCD jobbies....and only 50hz too.

Plasma is far superior.....everyone agrees with me on this point... ::) ::) ;)


OK, I won't buy one then. :)



Good idea......and get my post count back while you're at it......It's all your fault......... it was lost on your Wakefield thread last night..... ::) ::) ;)


I'll pop out and have a look for it later. Can't promise anything though. ;D
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Field Marshal Dr. Opti

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Re: Optimist
« Reply #7 on: 22 October 2010, 15:02:46 »

Sorry Skrunts....but I don't have any experience of 3D  television or LED....all I know is that I much prefer Plasma to LCD....(having owned both)

LED...(I think)....is pretty new technology.....so quite expensive at present..... :y
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aaronjb

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Re: Optimist
« Reply #8 on: 22 October 2010, 15:08:15 »

The 3D TV debate came up on t'other forum I frequent recently too.. I'm going to steal someone elses post and repeat it here as it seemed like a pretty good summary to me (besides the 'Don't buy into it, it's utter pap' argument which I personally subscribe to)

Quote
I've been doing a lot of work on 3D games in my day job, along with a lot of research into 3D TV technology. For what its worth, here's my take on it:

* Approximately 10% of the population can't see in 3D, be it 3D games or 3D in the real world.

* 3D content in cinemas is shown to the user at 6x the frame rate of 2D content. This is to reduce headaches. The image is shown to the left eye, then the right eye, then back to the left eye 6 times (three for each eye) before progressing on to the next frame. This means that a 60Hz 3D 1080p signal needs to be displayed at 360 Hz by the TV to avoid giving headaches. It is actually worse than this. The screen actually needs to turn both eyes off to change picture between left/right eye images. Only when the image has changed and it is completely static should an eye shutter on the glasses open and allow the eye to see it. This results in a real necessary refresh rate of at least 720Hz to allow the shutters to be open for 50% of the time combined, or only 25% per eye. Higher still is much preferable. Personally, I think this is the primary causes of headaches and this is where technology improvements are going to have the biggest impact.

* LCD TV's (including the LED backlit screens) can't do decent 3D (even the 3D ones) because of the above refresh requirement. They don't have the refresh rate required to update the screen that fast. The 3D on these screens is blurry and worse, ghosty. Ghosting is where the display can't make the pixels change colour quick enough between the the left and right eye images. This results in one eye seeing a different colour to the other eye for what should be the same colour. The picture looks crap and it gives you a headache as your brain tries to compensate for the lies your eyes are telling it. Even plasmas struggle to respond quick enough.

* The new(ish) Panasonic VT20 series (50" and 65") are the best 3D TV by a country mile, for many reasons. As someone noted above, they experienced this for themselves at retail. They're also the best or second best 2D screens behind the series 9 Pioneer Kuro. As to which is better depends on personal opinion on what constitutes the perfect picture. The pioneer still has the better blacks but the panasonic is pretty much the same or better on other points. The Panasonic VT20 series is however a fraction of the cost of the Pioneer and was actually developed by the Pioneer engineers. Panasonic hired them all after Pioneer left the plasma market several years ago. Some people refer to the new Panasonic as the Kuro 10 series. It's also priced at a level where it would be crazy to spend money on anything else! Panasonic developed a whole new Phosphor that is capable of responding fast enough for the requirements of decent 3D. Its presently the only manufacturer to use such phosphors. The screen ships with 2 sets of 3D glasses. It is the screen less likely to induce headaches when watched for a long period of time.

* Designer active glasses are on the way. Not a fan of it myself, but those that like to spend £100's of pounds on sunglasses with a brand name will be able to do the same on active glasses. Prescription lenses are also in the works. They're getting lighter and more comfortable. In a couple of years, I don't think the glasses will be much of an issue.

* Sky 3D is (presently) a free channel available to everyone that has a Sky HD box. All you have to do is call sky and ask them to turn it on. They'll ask you what TV you have, confirm that it is 3D and then add the channel to your subscription. The only catch is that you can only watch content that relates to your existing subscription. You can't watch 3D footie unless you have the Sports package. You can't watch 3D movies unless you have the Movie package.

* No-glasses 3D screens are a massive compromise and it won't meet people's expectations. The new Nintendo 3DS uses such a screen. It only works if your head is in the right position. Imagine a line down the centre of the TV. You must have one eye each side of this magic line to see the 3D effect. You can't move your head much. I can't see how this is ever going to work for more than 1 person watching it! Such screens are all presently LCD based, but they don't have the refresh problems mentioned above so isn't so much of an issue :) It is going to be many many years before this option becomes financially viable and of a quality level equal to rival a plasma.

* In addition to the above, the best 3D effect needs to know how big the screen is and how far your eyes are from the screen. The 3D content can't cater for large variances in these values, so you get an image that technically isn't right, unless you happen to have a screen of the exact size and be sitting the right distance away from the screen. This is part of the reason why 3D gives headaches. Your brain thinks your eyes are telling lies and 'corrects' what its seeing. This gets tiring after a while. There's no way to fix this for cinemas given how many people they have to simultaneously cater for. Nintendo, however, supply a slider control on their new game device which allows the 3D effect to be tuned and adjusted for your personal comfort. I can and do look at the device's screen all day every day and I don't get a headache. I expect home screens/playback equipment will begin to have such tuning features to allow you to reduce headache problems.

* The optimal distance to sit from a 3D TV is 1.5 times its diameter.

* As Nick says, content coming out the screen is a gimmick and doesn't work as well as content sinking in. Once content producers get over this gimmick and stop using it as much, the quality will increase.
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aaronjb

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Re: Optimist
« Reply #9 on: 22 October 2010, 15:08:59 »

The above was completely plagiarised from here: http://www.mr2roc.org/phpBB3/viewtopic.php?p=382514#p382514

Hopefully Jason won't mind ;D
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Del Boy

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Re: Optimist
« Reply #10 on: 22 October 2010, 15:10:32 »

Plasma isn't superior to LCD anymore in my opinion, in fact plasma looks a bit worse than LCD in certain cases if I'm being truthfully blunt.
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Mysteryman

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Re: Optimist
« Reply #11 on: 22 October 2010, 15:14:05 »

I can't see that much difference in any of them. Why? Because I am looking at the content of the programme I am watching and not looking for the minute differences in picture quality. You're a bunch of nerds. :P
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Field Marshal Dr. Opti

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Re: Optimist
« Reply #12 on: 22 October 2010, 15:15:03 »

Quote
Plasma isn't superior to LCD anymore in my opinion, in fact plasma looks a bit worse than LCD in certain cases if I'm being truthfully blunt.


I would say that LCD may give a slighty sharper image........but is not so good when it comes to blacks.....and movement..(pixel drag)....certainly neither are perfect... :y :y
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Field Marshal Dr. Opti

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Re: Optimist
« Reply #13 on: 22 October 2010, 15:16:55 »

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I can't see that much difference in any of them. Why? Because I am looking at the content of the programme I am watching and not looking for the minute differences in picture quality. You're a bunch of nerds. :P


No content in Corrie.. ::) ::)....it's boll**ks.. :y
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Kevin Wood

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Re: Optimist
« Reply #14 on: 22 October 2010, 15:20:16 »

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  Am happy with my 46" Plasma bought in January, but mainly use it on the PC, only hiccup is a bit of pixelation on high speed video and interestliy enough only on the Bravo channels, but Jimbob did mention this on larger TV's so I accept that.

Sounds like that's nothing to do with the TV. It's a compression artifact due to the fact that the lower budget channels get allocated a lower bit-rate so have to use heavier compression and therefore accept inferior picture quality.

Kevin
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