14 Jul
1999
14 Jul
'99
8:36 p.m.
Now compare that with the 330 lines per mm you get from a typical
apo-lanthar or apo-tessar as were made back in the '30's . . .
Dick
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, July 14, 1999 3:53 PM
Subject: Re: digital cameras
Looking at a
polaroid (I managed to get one within the last
few minutes), I think the usable resolution is way more than
1200 pixles per row (say more than 200 lines per inch).
I've just realised...
If you have a 100mm wide print (normal sort of size) and 640 pixels,
that's only 3 or 6 lpm (depending on whether you think a line is 1 pixel
or 2). That's not a poor resolution, it's a non-existant resolution!
Ouch!. Now I know why I can't stand those digital cameras.
-tony