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From: rab@well.UUCP (Bob Bickford)
Newsgroups: net.graphics,net.video
Subject: Re: RGB to NTSC
Message-ID: <626@well.UUCP>
Date: Sat, 8-Feb-86 23:58:51 EST
Article-I.D.: well.626
Posted: Sat Feb  8 23:58:51 1986
Date-Received: Tue, 11-Feb-86 06:11:39 EST
References: <210@batcomputer.TN.CORNELL.EDU>
Organization: Whole Earth Lectronic Link, Sausalito, CA
Lines: 50
Keywords: NTSC encoders
Xref: watmath net.graphics:1451 net.video:2005

In article <210@batcomputer.TN.CORNELL.EDU>, andy@batcomputer.TN.CORNELL.EDU (Andy Pfiffer) writes:
> Our group is interested in acquiring equipment that would enable us to
> videotape RGB output from various display devices (eg. Sun-3/160C, Raster
> Technologies One/10...).  Other devices (Iris, IBM PC-RT, ...) may be on
> the way.
> 
> We would appreciate suggestions on equipment.  We realize that we will be
> suffering a loss of spatial resolution, but we will be using the tapes as
> a faster alternative to hard copy or film.
> 
> Some questions:
> 
> 	1. Does ANYONE make compatible equipment for Suns?  It has a
> 	   66Hz refresh rate.

  As far as I am aware, NO.  You'd have a heck of a time finding
a videotape recorder for that anyway.

> 
> 	2. If you currently are using video, we'd really like to hear about
> 	   your configuration.
> 
> 	3. We have some information from Lenco.  Are they the only
> 	   manufacturer of NTSC encoders?

   No, you can also try Electrohome, and a quick call to your nearest
TV station should get you the names of a few broadcast manufacturers.

> 
> Thanks in advance.
> 
> Andy Pfiffer
> Cornell Theory Center
> 265 Olin Hall / Cornell U.
> Ithaca, NY  14853
> 

  I would suggest that you try using a camera on those various displays.
Both the Sun and the IBM put out video which is non-NTSC in various ways
(the IBM, for example, violates the blanking spec) and you'd have a real
nightmare converting everything.

  I'd be curious to know what your final solution turns out to be.



       Robert Bickford     (rab@well.uucp)
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|  I doubt if these are even my own opinions.  |
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