[mburnstein]

Is there a rule of thumb for ideal seat distance from screen based on the screen width, in this case 12 foot wide 2.35:1 CH and a JVC RS-1 1080p projector? Thanks

 

[thebland]

Mark,


I believe THX has a recommendation and SMPTE does as well. I know the THX spec suggests sitting closer than the SMPTE. Sorry no links.


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[Alimentall]

Mark,


You should be able to do as close as 1:1 at that point. Resolution will be fine, shouldn't have any pixels obvious and the screen shouldn't be too wide. 15' is safe. 18' is a waste of the resolution, screen width for the most part. If you're doing multiple rows, I'd definitely put the first one at or near 12' from the screen.

 

[sdurani]

Mark,


Try this viewing distance calculator for THX and SMPTE seating distances.


For a 12 foot wide screen: THX recommends between 18.5 and 26 feet, SMPTE recommends 22.4 feet. Based on visual acuity: 21.6 feet for HDTV (1080x1920), 57.6 feet for NTSC (480x720).


Sanjay

 

[Alimentall]

Perhaps, Sanjay, but this is a 2.35:1 screen. That means much material is only going to be about 7'-9' wide. I wouldn't go an *inch* over 18' away, but really? I'd be at more like 15'. 12' may be pushing the limits, but for 2.35:1, I don't think that's *too* close if you're into the big movie effect. IOW, if you do 18', you're at the same 1.5:1 ratio I'm at with a 16:9 screen and half the resolution. I think those figures are *very* conservative.

 

[mburnstein]

John,

the screen is 12 foot wide at 2.35:1 AR

Quote:
Originally Posted by Alimentall /forum/post/0


Perhaps, Sanjay, but this is a 2.35:1 screen. That means much material is only going to be about 7'-9' wide. I wouldn't go an *inch* over 18' away, but really? I'd be at more like 15'. 12' may be pushing the limits, but for 2.35:1, I don't think that's *too* close if you're into the big movie effect. IOW, if you do 18', you're at the same 1.5:1 ratio I'm at with a 16:9 screen and half the resolution. I think those figures are *very* conservative.

 

[Alimentall]



Quote:
Originally Posted by mburnstein /forum/post/0


John,

the screen is 12 foot wide at 2.35:1 AR

I understand, that's why I think no more than 15' is the right distance for the first row.