4k Simulation Tech for Sitting Close - AVS Forum
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post #1 of 17 Old 03-22-2013, 03:08 PM - Thread Starter
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I read that typical seating is 1.5x screen width.

I will be sitting more like 1x SW.

At this distance, I assume the image may look a bit pixelated.

Is there a better panel tech such as DLP, LCOS, or picture enhancement such as Sony SRXD, JVC eShift, Darbee etc. to reduce pixelation at this distance assuming 4k compatible screen?
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post #2 of 17 Old 03-22-2013, 06:37 PM
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You might consider the JVC 4810 with E shift if you can't afford the Sony VW 1000 ! Give Mike or myself a call.

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post #3 of 17 Old 03-22-2013, 09:35 PM
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The JVC e-shift looks very good at close seating distances. I sit 1.25 from a 142" 16:9 and it definitely makes a noticeable difference when it's on.

Click on the link in my signature for a close up look at what it does to the image.


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post #4 of 17 Old 03-23-2013, 01:52 AM
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Quote:
Originally Posted by n8dgr84 View Post

I read that typical seating is 1.5x screen width.

I will be sitting more like 1x SW.

At this distance, I assume the image may look a bit pixelated.

Is there a better panel tech such as DLP, LCOS, or picture enhancement such as Sony SRXD, JVC eShift, Darbee etc. to reduce pixelation at this distance assuming 4k compatible screen?


Should be 1.5x of screen height. Not sw.

Sent from my Nexus 7 using Tapatalk 2
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post #5 of 17 Old 03-23-2013, 03:57 AM
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Quote:
Originally Posted by timescape7 View Post

Should be 1.5x of screen height. Not sw.

Sent from my Nexus 7 using Tapatalk 2

I always thought it was SW
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post #6 of 17 Old 03-23-2013, 05:15 PM
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Quote:
Originally Posted by blee0120 View Post

I always thought it was SW

20/20 vision 55pixels per degree VA for best image quality

1920x1080

1.59:1 SW or 35Deg Horizontal approx
or
2.9:1 SH or 20Deg Vertical approx


3840 x 2160

0.69:1 SW or 70Deg Horizontal approx
or
1.23:1 SH or 40Deg Vertical approx

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post #7 of 17 Old 03-23-2013, 08:26 PM
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Ya, I always use SW ( screen width ).

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post #8 of 17 Old 03-26-2013, 10:45 AM
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Quote:
Originally Posted by Highjinx View Post

20/20 vision 55pixels per degree VA for best image quality

1920x1080

1.59:1 SW or 35Deg Horizontal approx
or
2.9:1 SH or 20Deg Vertical approx


3840 x 2160

0.69:1 SW or 70Deg Horizontal approx
or
1.23:1 SH or 40Deg Vertical approx

.69:1 SW is really close. 1SW is close
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post #9 of 17 Old 03-26-2013, 03:19 PM
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The best place to sit is behind the screen. You will never see any artifacts that way.

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post #10 of 17 Old 03-26-2013, 03:50 PM
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The best place to sit is behind the screen. You will never see any artifacts that way.
I should try that, too bad there is a wall in the way
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post #11 of 17 Old 03-26-2013, 05:11 PM
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Quote:
Originally Posted by timescape7 View Post

Should be 1.5x of screen height. Not sw.

Sent from my Nexus 7 using Tapatalk 2

1.5 viewing height from my screen means I would be viewing my 9' wide screen from 5'-7". 1.5 screen heights is pretty close even if using a 16:9 screen, but it is doable, for some people. For a 110" diagonal 16:9 screen, you would be viewing from 9'. If you are talking about a 16:9screen, then1.5 screen widths is pretty standard. If using a scope screen, then you usually are talking 2.0 to 4.0 screen heights. I view my 9' wide screen from 9', 2.4 screen heights.

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post #12 of 17 Old 03-26-2013, 07:22 PM
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Quote:
Originally Posted by blee0120 View Post

.69:1 SW is really close. 1SW is close

3840 x 2160 supports .69SW

1920 x 1080 supports 1.59SW

For optimum image quality 20/20 etc.......sitiing closer and the image may be watchable but not optimal.

If one eye sight is better than 20/20 eg 20/15 then one needs to further away again..

Real life supports......as close you can get as long as one can focus!!! wink.gif

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post #13 of 17 Old 03-27-2013, 06:53 AM
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http://m.youtube.com/index?&desktop_uri=%2F

1.5x screen height explained. This was recommended by NHK research.

Sent from my Nexus 7 using Tapatalk 2
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post #14 of 17 Old 03-27-2013, 06:56 AM
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http://m.youtube.com/?reload=14&rdm=mk0win3vv#/watch?feature=relmfu&v=kLEIoidVrqA

1.5x screen height explained. This was recommended by NHK research.

Sent from my Nexus 7 using Tapatalk 2[/quote]

Sent from my Nexus 7 using Tapatalk 2
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post #15 of 17 Old 03-27-2013, 07:26 PM
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Quote:
Originally Posted by timescape7 View Post

http://m.youtube.com/?reload=14&rdm=mk0win3vv#/watch?feature=relmfu&v=kLEIoidVrqA

1.5x screen height explained. This was recommended by NHK research.

Sent from my Nexus 7 using Tapatalk 2

Sent from my Nexus 7 using Tapatalk 2[/quote]


That would be for 4k not 2k........?

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post #16 of 17 Old 03-28-2013, 06:40 AM
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Quote:
Originally Posted by Highjinx View Post

Quote:
Originally Posted by timescape7 View Post

http://m.youtube.com/?reload=14&rdm=mk0win3vv#/watch?feature=relmfu&v=kLEIoidVrqA

1.5x screen height explained. This was recommended by NHK research.

Sent from my Nexus 7 using Tapatalk 2

Sent from my Nexus 7 using Tapatalk 2


That would be for 4k not 2k........?[/quote]

2k will be 3x picture height.
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post #17 of 17 Old 03-29-2013, 02:46 PM
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Quote:
Originally Posted by timescape7 View Post

That would be for 4k not 2k........?

2k will be 3x picture height.[/quote]

Good thnaks.

These figures concur:

SW = Screen Width
SH = Screen Height

20/20 vision 55pixels per degree Visual Acuity for best image quality

1920x1080

1.59 SW or 35Deg Horizontal approx
or
2.9 SH or 20Deg Vertical approx


3840 x 2160

0.69 SW or 70Deg Horizontal approx
or
1.23 SH or 40Deg Vertical approx

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