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Path: utzoo!utgpu!water!watmath!clyde!rutgers!im4u!milano!marks
From: marks@milano.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: 'Projection' monitors
Message-ID: <5185@milano.UUCP>
Date: Tue, 1-Sep-87 11:32:57 EDT
Article-I.D.: milano.5185
Posted: Tue Sep  1 11:32:57 1987
Date-Received: Thu, 3-Sep-87 00:49:29 EDT
References: <8708@necntc.NEC.COM> <100310@cpsc53.UUCP> <456@hscfvax.UUCP>
Sender: marks@milano.UUCP
Organization: MCC, Austin, TX
Lines: 28


In article <456@hscfvax.UUCP>, pavlov@hscfvax.UUCP (840033@G.Pavlov) writes:

>   The Kodak unit is very cost-effective compared to anything else I priced.

The Datashow is very AVAILABLE compared to its direct imitators. The latter
are 30 % cheaper, but I have only seen ads (Minnesota Educational Computer
Consortium sells one, for example).

>   But it does have a flaw which limits its effectiveness: if the overhead
>   projector generates a lot of heat (and many, if not most, do), the Slide
>   Show image will, after about 30 minutes, begin to waver and fade.

This is true, but I have come across two solutions:

  + re-adjusting the contrast from time to time will keep mine usable
    for a few hours (but is an annoyance)
	
  + Kodak sells an accessory fan for ~$100 (the screw holes are in the
    Datashow already ;-) ) which allows my unit to run continuously
    without needing any re-adjustment (it does add some fan noise, though)
-- 

  +------------------------------------------------------------+
  |   Peter Marks, MCC, 9390 Research Blvd., Austin TX 78759   |
  |             (512)338-3349       marks@mcc.com              |
  | {gatech,harvard,pyramid,seismo}!ut-sally!im4u!milano!marks |
  +------------------------------------------------------------+