P3D Re: Stretcho-TDC

[Tom Hubin <thubin@xxxxxxxxx>]

Michael Georgoff wrote:
> 
> I'm suffering from severe z-axis stretch and I just do not know what to do
> about it.

<snip>

> Lately (last week to be exact) a TDC 116 showed up on my doorstep, thanks to
> the miracle of savings accounts and watching S3D like a hawk.  Finally, true
> stereo projection in my own home!  Joy!  Rapture!  But wait! Z-axis stretch
> from hell!
> 
> The TDC 116 has 5" lenses on it. 

<very big snip>

Hello Michael,

Congrats on getting your new toy. How much distance between screen and
projector? 

When I first got into this hobby about two years ago I found a lot of
very useful semi-technical information at http://www.da-lite.com. I just
checked and it is all still there under the general subject of
education. I won't give you the exact links that I used because they
have relocated and renamed the files since I printed the info. But it
all seems to be there.

They address the issue of audience size (depth and width) for screens
with various sizes and viewing angles. They cover this in one of the
rear projection articles. So don't ignore the rear projection articles
just because you are doing front projection. A lot of the stuff applies
either way.

They sell projection screens, both rear and front. I do not know
anything about Da-Lite or their screens. But their educational material
is very informative.

Tom Hubin
thubin@xxxxxxxxx


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