Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!cmcl2!rutgers!princeton!udel!burdvax!sdcrdcf!trwrb!cadovax!gryphon!richard
From: richard@gryphon.CTS.COM (Richard Sexton)
Newsgroups: comp.sys.amiga
Subject: Re: Another A2000 Question (LP monitor smear?)
Message-ID: <1814@gryphon.CTS.COM>
Date: Wed, 7-Oct-87 17:17:10 EDT
Article-I.D.: gryphon.1814
Posted: Wed Oct  7 17:17:10 1987
Date-Received: Sat, 10-Oct-87 18:43:39 EDT
References: <177@tahoma.ARPA>
Reply-To: richard@gryphon.CTS.COM (Richard Sexton)
Followup-To: rec.food.choking
Organization: Trailing Edge Technology, Redondo Beach, CA
Lines: 37
Keywords: LP, long-persistence, smearing?

In article <177@tahoma.ARPA> bakken@tahoma.ARPA (Dave Bakken) writes:
>
>Another A2000 question:  Is smearing a problem with a long-persistence 
>monitor on the Amiga (both with the stock Amiga and with a 68020/68881 board)? 
>Would it be noticable only with the fastest of animations, or most/all
>animations and even routine operations with a WYSISYG word processor or a
>paint program?

Yes, smearing will be a problem with long persistence monitors, but
if you have a 68020/68881 it will run so fast that smearing wont
be a problem.

Ok, ok, real answer:

Yes, smearing is going to be a problem. The worst problem is where
you have an illuminated area on the screen that is black in the next frame.

It wont be as bad if a white area turns into a yellow area.

Yes, it will even be a problem for word processors, but one workaround
is to use black text on a light background.  This smears less when you scroll.

Why do you think Xerox machines and Macs have a black on white display ?

The real answer is SCAN DOUBLERS. Consider: if somebody (anybody) brings
out a LP monitor, it wont flicker, but it will smear, and you probably
arn't going to be too pleased with the colors. But if you have a scan
doubler, you can use any (compatable) monitor that you like.
 
>Dave Bakken
>Boeing Airplane Commercial Company
-- 
Richard J. Sexton
INTERNET:     richard@gryphon.CTS.COM
UUCP:         {hplabs!hp-sdd, sdcsvax, ihnp4, nosc}!crash!gryphon!richard

"It's too dark to put the keys in my ignition..."