Archived posting to the Leica Users Group, 2002/10/27

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Subject: RE: [Leica] Re: web sizing images
From: "Austin Franklin" <darkroom@ix.netcom.com>
Date: Sun, 27 Oct 2002 13:08:39 -0500

Hi Tom,

> For instance, a 480 x 640 image will take up the whole monitor if your
> monitor is set to 480 x 640, but only half of the monitor if it is set to
> 1280 x 960.

I believe that would be 1/4th, not half ;-)

> 72dpi is just a convention, the way I understand it.

Most PC monitors display around 100 pixels per inch (monitors display
pixels, not dots...).

72DPI came from the number of points per inch in the printing industry.  The
original Mac's were specifically set up to display 72 PPI on their screen,
so what you see is what you get, as far as graphics art was concerned.  This
was why you could only buy display adapter/monitor combinations made
specifically for the Mac.  I believe this restriction has been "lifted" for
a number of years now.

Austin

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