Xref: utzoo comp.sys.ibm.pc:25486 rec.photo:4808
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!pyramid!ctnews!starfish!jerry
From: jerry@starfish.Convergent.COM (Gerald Hawkins)
Newsgroups: comp.sys.ibm.pc,rec.photo
Subject: Re: Photographing PC Screens
Message-ID: <959@starfish.Convergent.COM>
Date: 1 Mar 89 19:15:34 GMT
References: <3779@peora.ccur.com>
Followup-To: comp.sys.ibm.pc
Distribution: na
Organization: Convergent Technologies, San Jose, CA
Lines: 34

From article <3779@peora.ccur.com>, by joel@peora.UUCP:
> I just got a VGA compatible board for my PC and I was looking for
> some advice on how to photograph the screen either with a 35mm
> or a Poloroid camera. My previous experiences were not that
> successful. I haven't seen any articles discussing this in computer
> Joel Upchurch/Concurrent Computer Corp/2486 Sand Lake Rd/Orlando, FL 32809
> joel@peora.ccur.com {uiucuxc,hoptoad,petsd,ucf-cs}!peora!joel (407)850-1040
-
-
I have had occassion to do this at times.  There are two big problems:
1.  Glare!  You can end the glare problem by making a hood of cardboard
or cloth or photographing in a near dark room.  You will have a slight
problem getting the exposure right on some cameras.  Use an exposure time
longer than two screen paints (ie, 1/30 or 1/15 second) to be certain
that you don't see any scan-effects.

2.  Linearity!  The things on the screen which your eye assures you are
straight are not.  I don't know of any special lens you can use.  If you're
photographing full time you could dedicate a monitor just to photography
and pincushion it to appear linear to the camera.

Now the good news.  If you are made of money, PC Magazine just ran an
article about slide makers for the PC, which contain a tiny monitor and
lens and get everything perfect for you.  They cost from about $3500 to
about $15000.  I hope your company has lotsa bucks.


Rainy Days and
Automatic Weapons Fire
Alway Get Me Down.

These opinions are mine.
Jerry.  (jerry@starfish.convergent.COM)
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