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From: dennisg@fritz.UUCP (Dennis Griesser)
Newsgroups: comp.org.usenix
Subject: Foils, slides, and pointers
Message-ID: <3883@fritz.UUCP>
Date: Mon, 16-Mar-87 15:39:14 EST
Article-I.D.: fritz.3883
Posted: Mon Mar 16 15:39:14 1987
Date-Received: Tue, 17-Mar-87 04:37:02 EST
References: <7720@utzoo.UUCP> <1227@msudoc.UUCP> <2992@ihlpg.ATT.COM> <15246@onfcanim.UUCP> <1987Mar10.151850.14051@sq.uucp>
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Reply-To: dennisg@fritz.UUCP (Dennis Griesser)
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In article <1987Mar10.151850.14051@sq.uucp> msb@sq.UUCP (Mark Brader) writes:
>Overhead projectors, as usually used, give images that are light gray
>on a white background.  Yuck!  Turning off the room lights makes it dark
>gray on white, but can also be unpleasant.  At the first day of the
>conference, however, instead of overhead projector foils we were given
>slides, typeset in white on blue.  Much better!  This was apparently an
>innovation of the organizers du jour; it should become a standard.
>(And if the speakers want to point at the slides, the dark background
>allows either flashlight or laser pointers to work nicely.)

About three years ago, I presented a paper at HLSUA (Honeywell's group) and
every presentation that I saw used 35 mm slides.

The lettering was white on a dark blue background.  As Mark mentioned, this
made for easy use of a light pointer.  In addition, the slides were loaded
into a carousel slide projector.  The speaker held the remote control.

The only problem I encountered was a projector with a brain-damaged automatic
focus feature.  Whenever I changed slides, the image would start out crisp and
rapidly become fuzzy.  When manually corrected, it would de-focus itself again
automatically.   AAARGH!