Archived posting to the Leica Users Group, 2001/12/31

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Subject: Re: [Leica] Re: #190 A Flat Panel iMac
From: Brian Reid <reid@mejac.palo-alto.ca.us>
Date: Mon, 31 Dec 2001 09:33:04 -0800
References: <000001c19216$78865590$0e8efea9@SAM> <003101c1921c$8b655ca0$14b360d1@alice>

Since the Leica Users Group consists of people who use both computers and 
Leicas, and who are interested in image quality, I believe this all to be 
on topic.

Flat panel displays do not have an adjustable resolution. Their pixels are 
installed at the factory. If the display has a resolution of 1600x1280, 
that means that there are 1600 columns of pixels in 1280 rows, and that's 
the way it is. If you ask for a screen size that is different from what is 
built in, various compromises can be made, but all of them will damage the 
image quality.

CRT screens are more complex; they do and they don't have built-in image 
resolution. A color CRT has a "shadow mask" whose purpose is to keep the 
three beams collimated, and that shadow mask places some restrictions on 
where the pixels can be. Trinitron-style shadow masks have more flexibility 
horizontally than vertically.

Every display device has a resolution at which it looks the best. Flat 
panel displays are more or less unusable at other resolutions; CRTs can 
adjust more readily.

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In reply to: Message from "Sam Krneta" <skrneta@mindspring.com> (RE: [Leica] Re: #190 A Flat Panel iMac)
Message from "Mike Durling" <durling@widomaker.com> (Re: [Leica] Re: #190 A Flat Panel iMac)