Archived posting to the Leica Users Group, 2004/11/10

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Subject: [Leica] More signs of the Digital Age
From: tarek.charara at pix-that-stimulate.com (Tarek Charara)
Date: Wed Nov 10 01:49:51 2004
 
De Frank Dernie <Frank.Dernie@btinternet.com>, le mercredi 10 novembre 2004 
? 07:57 GMT :

>I have met people who assume there is a "natural" print resolution of 
>300dpi. They quote print sizes this way, stupid but true.


Hello Frank,

The 300 dpi thing is from the printing industry and screening. The rule of 
thumb (for scanning) was: dpi = 2x screen, i.e. 150 line screen = 300dpi etc.

Todays magazines can print with screens upto 250 lines per inch = 500dpi. 
That gives us file sizes up to 184megs (CMYK) for a double page spread (11.7 
x 16.7). Most of the magazines use 170 lpi=340 dpi.

Tarek
In reply to: Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] More signs of the Digital Age)