T3D Re: Medium Format viewer

[roberts@xxxxxxxxxxxxxxxxx (John W Roberts)]

>Date: Tue, 9 Mar 1999 09:00:37 -0700
>From: Greg Erker <erker@xxxxxxxxxxxxxx>
>Subject: T3D Re: Medium Format viewer

>  But then, no one sits at the ortho distance
>from a regular (non-HDTV) television set. The
>scan lines would be much too visible. By ortho
>I mean sitting a distance equal to the screen
>diagonal away (mis-use of term I agree).

I believe the *intended* viewing distance (for which NTSC was
designed) is about 7 times the height of the image. I think the
intended viewing distance for broadcast HDTV (1080 line?)
is about 3.5 times the height of the image.

John R


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End of TECH-3D Digest 464
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