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EricL
Joined: 23 Aug 2011 Posts: 15 Location: Tampa,FL
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Link Posted: Wed Aug 24, 2011 1:59 pm Post subject: |
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I guess my irritation in that is that my NEC XG110LC will cleanly support 720p/100 but flakes out at 120. I can do 60 fine, but i've used other older pc based 3d systems with 60hz displays and the flicker was irritating. And I hate to spend the $700 first to find out that 60hz sucks still today. I would think it would be easier on the hardware to pass through a 720p/50 as 720p/50 than convert to 60 or 120 as well. sigh, oh well. I suppose what I need to do is find someone local to me who will bring theirs over so we can try it before I buy, not like I can afford to throw away $700 (unit + glasses)
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kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17850 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Link Posted: Wed Aug 24, 2011 2:07 pm Post subject: |
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EricL wrote: | I guess my irritation in that is that my NEC XG110LC will cleanly support 720p/100 but flakes out at 120. |
Actually that's a valid point. Never thought of that.
Quote: | I can do 60 fine, but i've used other older pc based 3d systems with 60hz displays and the flicker was irritating. And I hate to spend the $700 first to find out that 60hz sucks still today. I would think it would be easier on the hardware to pass through a 720p/50 as 720p/50 than convert to 60 or 120 as well. sigh, oh well. I suppose what I need to do is find someone local to me who will bring theirs over so we can try it before I buy, not like I can afford to throw away $700 (unit + glasses) |
If you used 60Hz on the same display and found 60Hz irritating then you'll still most likely find it irritating since it'll still be 60Hz. Changing the display however can make a difference as different displays have different amounts of persistence. Ie: On some CRT displays the phosphor persists longer after being excited - the light dies away more slowly such that the flicker is less noticeable.
Kal
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EricL
Joined: 23 Aug 2011 Posts: 15 Location: Tampa,FL
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Link Posted: Wed Aug 24, 2011 2:13 pm Post subject: |
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kal wrote: |
Quote: | I can do 60 fine, but i've used other older pc based 3d systems with 60hz displays and the flicker was irritating. And I hate to spend the $700 first to find out that 60hz sucks still today. I would think it would be easier on the hardware to pass through a 720p/50 as 720p/50 than convert to 60 or 120 as well. sigh, oh well. I suppose what I need to do is find someone local to me who will bring theirs over so we can try it before I buy, not like I can afford to throw away $700 (unit + glasses) |
If you used 60Hz on the same display and found 60Hz irritating then you'll still most likely find it irritating since it'll still be 60Hz. Changing the display however can make a difference as different displays have different amounts of persistence. Ie: On some CRT displays the phosphor persists longer after being excited - the light dies away more slowly such that the flicker is less noticeable.
Kal |
no, the 60hz glasses were on hmm geez a roughly 1998 model 19" CRT display from NEC as chance has it. Definitely the projector is a far different display device. Still the risk of not liking it really reduces my odds of buying it at all, where if it supported the 100hz i'd buy one right away just for xbox and bluray use.
I've actually used 3d glasses as far back as on the amiga on a standard 1980s tv set around 1984. Always enjoyed 3d, and I'd kill to play Call Of Duty Black Ops in 3d as well as the upcoming Bioshock game on the projector.
Anybody want to loan me theirs for a couple days?
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ncc1701d
Joined: 08 Aug 2007 Posts: 187 Location: sweden
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Link Posted: Wed Aug 24, 2011 9:58 pm Post subject: |
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Hmm isn't that wrong?
pal movies are 50hz and the 3d box convert it to 60hz then it would stutter i think..?
Have they forgotten that?
kal wrote: | My understanding (from the lead developer) is that any Euro HDTV that does 720p/50 will also do 720p/60, so there's no need to support 720p/50. I would assume the same with the 720p/100 -> 720p/120 difference (but am unsure about that).
Kal |
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kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17850 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Link Posted: Wed Aug 24, 2011 10:33 pm Post subject: |
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ncc1701d wrote: | Hmm isn't that wrong?
pal movies are 50hz and the 3d box convert it to 60hz then it would stutter i think..?
Have they forgotten that? |
I'm not sure what you mean by "PAL MOVIES". All movies are shot at 24 frames per second (fps) worldwide (some shot on video are done at 30). They did not shoot 2 versions of "Lord of the Rings" for example. It was shot at 24 fps like 99% of movies.
When you watch all 24 fps movies in 60Hz countries (like North America), the 24 needs to be converted to 60 using a 3/2 pulldown process.
The same with converting 24 to 50 for european TVs using a slightly different conversion process.
In both cases this, yes, can introduce some jutter or what you call stutter. That is correct. Most people however do not care or notice it at all. If most people complained, they wouldn't be able to sell any DVD/Blu-ray movies at all.
Kal
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incova
Joined: 27 Nov 2006 Posts: 789 Location: london
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Link Posted: Wed Sep 14, 2011 8:53 pm Post subject: can you change/upgrade it? |
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"My Zenith 1200 scans to a maximum of 75Khz horizontal scan rate so I'm forced to use 720p/60Hz", Hi kal couldnt you upgrade this so you have greater H scan especially useful for 3d. A barco Graphics 808S has a higher H scan rate than that does it not?
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kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17850 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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ribaud
Joined: 17 Jan 2008 Posts: 11
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Link Posted: Fri Mar 09, 2012 5:56 pm Post subject: |
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A question for anyone who can answer:
I'm running a G70 in 3D from a Radiance XS+ at 720p96. I've used the 3dtv universal transmitter and nvidia glasses successfully, but have had no luck getting the 3dtv model N glasses to sync (they do fine at 120 Hz, as do the nvidia glasses). Meantime, the transmitter blinds my IR repeater. So...will the VIP glasses work at 96 Hz, and is the 3-pin VESA connector on the Lumagen CRT 3D device the correct one for the VIP transmitter?
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kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17850 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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ribaud
Joined: 17 Jan 2008 Posts: 11
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Link Posted: Thu Mar 15, 2012 3:21 pm Post subject: |
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Thanks for the suggestion! I've had a very informative exchange with them. The short answer is yes, the RF transmitter and glasses will work at 96 Hz as long as the user can provide the drive signal.
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