Are 3D TV's a scam ?

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stereorules

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I know the title is a bit dramatic ...but my basic question is this ---

If I were to record a 3d film playing in a theatre on a normal video camera without glasses and playback on my normal TV and watch with 3D glasses --- will I get 3d visuals ? If I get 3d visuals, what is the point of having 3d TVs ?

what I'm trying to say is that the 3d part be encoded / transmitted in the content itself . take the case of 3d comics ...

So apart from converting 2d into 3d, does the 3d tv really do anything extra that cannot be done in some other hw like a 3d bd player .... in which case, that 3d bd player can be used with any existing tv and voila ..u get 3d on normal TV ..

Of course, this wud upset the apple cart of all the TV manufacturers who hv been going to town with 3D TVs ..
 
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I guess something like what you said was tried with the 3D version DVD of Polar Express. They provided the typical blue/red 3D glasses with the DVD and you could see this on a normal HDTV. But the experience was nowhere near real 3D. Only a slight hint of images overlapping was there. Infact my eyes were fatigued after watching the movie for half an hour or so...As far as the case that you have mentioned, its yet to be tested as i never tried recoding a 3D movie while watching in a theater.

cheers
 
You are essentially saying that we can hook up a regular 2D with a 3D player and watch 3d content, all you would need is a pair of glasses. I didn't know that was even possible.

I have 3d ripped content for instance that appears side by side on a 2D screen instead of overlapping layers. I would have thought the same thing applied to a 3D player connected to a 2D TV.
 
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nindo said:
I guess something like what you said was tried with the 3D version DVD of Polar Express. They provided the typical blue/red 3D glasses with the DVD and you could see this on a normal HDTV. But the experience was nowhere near real 3D. Only a slight hint of images overlapping was there. Infact my eyes were fatigued after watching the movie for half an hour or so...As far as the case that you have mentioned, its yet to be tested as i never tried recoding a 3D movie while watching in a theater.

cheers
Click to expand...

That's called Anaglyph 3D and it has a completely different encoding to the ones you see on 3D TVs and the multiplex. You cannot for instance take a red/green glass and watch 3D content in a multiplex, it will not work. Another factor is that content is Anaglyph 3D is not commonly available and mainly for the reasons you have listed.
 
Yes, i guess thats the point. in proper 3d recorded movies the images will be seen as split screen on a 3D TV, so having standard red/blue glasses wont work as they work only with overlapping images. for this kind of 3d viewing you need the powered glasses which combine the 2 separate images and make it look like a singe 3d image. I guess this is what is active 3D

but another point is that LG 3d TVs use passive 3D in which case it still might be possible to try out what stereorules says and might actually work, not sure though.!

gurus on the forum can comment.
 
nindo said:
Yes, i guess thats the point. in proper 3d recorded movies the images will be seen as split screen on a 3D TV, so having standard red/blue glasses wont work as they work only with overlapping images. for this kind of 3d viewing you need the powered glasses which combine the 2 separate images and make it look like a singe 3d image. I guess this is what is active 3D

but another point is that LG 3d TVs use passive 3D in which case it still might be possible to try out what stereorules says and might actually work, not sure though.!

gurus on the forum can comment.
Click to expand...

my bad, these 3D images look separate only on a 2D TV but will look over lapped in a 3D TV.! please ignore the ignorance.! :o
 
From what I understand passive and active 3d are two different ways of watching the same encoded 3D content. Active switches between the left and the right view. With passive 3D, the glass is polarized, each blocking a certain light out so you get two varying views from both eyes at the same time.

Its the job of the 3D TV to take the content and layer it for the view which a 2d tv cannot do hence we see it one besides the other.
 
To answer your question,

1) Anaglyph 3D (red/cyan or other types) - will work on any and all monitors or tv's ( non 3D as well as 3D but in 2D mode) (But they suck beyond anything and will make you nauseated after a few minutes)

2) Active shutter, polarized 3d, naked eye 3d etc - Will only work on 3DTV's and 3D monitors (getting pretty good with every year)
 
lonsharim said:
You are essentially saying that we can hook up a regular 2D with a 3D player and watch 3d content, all you would need is a pair of glasses. I didn't know that was even possible.
Click to expand...
I'm not saying this ....What I was trying to say is if we send the same signal to a normal 2d tv that is being shown on the movie screen and we use those same glasses, can we see a 3d image ? If so , then what is the fuss with 3d TVs all about ?
 
to answer my own question , quoting from
how 3d TVs work
"
One of the requirements mentioned above is for your TV to do 120 Hz. Most TVs sold in the last few years can do this, some can even do 240 Hz, so why do you need a new TV?

The problem with previous 120 Hz displays is that, while they can display at 120 Hz, they can only accept a 60 Hz input. What happens internally on these TVs is that they do frame interpolation, or simply double the number of frames, to get the picture to display at 120 Hz, 240 Hz or even higher.

3D TVs are different in that they can accept a 120 Hz input and then display it as such. This is the only way to guarantee smooth motion during 3D, when each eye is only seeing half of the frames.

And of course for active shutter 3D displays (which represents the majority of 3D TVs on the market), its the TV that needs to sync with the glasses. An infrared signal between the TV and the glasses makes this happen, and your older TV will not have this capability. This is why glasses must be paired with the TV, and using Panasonic glasses on a Samsung TV wont really work (well this is a bad example, because it actually does work if you turn the glasses upside down but try using it on a Sony TV and it wont work at all). There is a movement to get 3D glasses to be standardized, but dont hold your breath.

Of course, if you older TV can accept 120 Hz inputs, and if there was some kind of dongle that adds the infrared communication between the TV and the glasses, then theoretically, this TV can be 3D ready. But theres more profit in selling a brand new TV than a 3D dongle, so again dont hold your breath waiting for such a solution.

"
 
No one talked on rarest of all thing i.e. 3d contents ..
BDR 3d is 1200/-, downloads only if you can get lucky but how many 30GB you will download?
 
kaushik said:
No one talked on rarest of all thing i.e. 3d contents ..
BDR 3d is 1200/-, downloads only if you can get lucky but how many 30GB you will download?
Click to expand...
Not necessarily. You can import from Amazon.co.uk for as little as 8 (Rs. 720). The max may be 18 (Rs. 1620). On an average the price will be 12 (1080). The 15~18 range caters mostly to new titles. All you have to do is wait for six months or so and the price will drop.

Also note that the 3D blu-ray will also contain a 2D blu-ray.
 
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