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RE: Whinging about Photoshop's Image Size



<x-charset Windows-1252>Not to provoke a protracted discussion on list where everyone chimes in with
their favorite position, I am answering off list.  I think that what Kennedy
is saying is that current printers will use what it needs of resolutions
above or higher than its minimum requirements, throwing away any additional
unneeded or unused ppi/dpi, without quality suffering.  This is not the case
if you send a file to the printer with less than the minimum required
resolution in which case quality will suffer.  If the minimum requirement is
240 dpi/ppi and you send it a 600 dpi/ppi file, the printer will produce the
same quality output as it would if you sent it a file that was 300 or 240
dpi/ppi.  However, if you send that printer a file that is only 72 dpi/ppi,
the quality of the output will suffer noticeably.  In all instances and
examples, I am assuming that the image lineal dimensions remain the same and
constant.

-----Original Message-----
From: owner-epson-inkjet@leben.com
[mailto:owner-epson-inkjet@leben.com]On Behalf Of Bob Frost
Sent: Saturday, August 18, 2001 8:34 AM
To: epson-inkjet@leben.com
Subject: Re: Whinging about Photoshop's Image Size


----- Original Message -----
From: "Kennedy McEwen" <rkm@kennedym.demon.co.uk>

But most inkjets
and lasers handle any resolution that is thrown at them these days, due
to the stochastic dithering algorithms employed, so assigning specific
dimensions to pixels is not as relevant with such devices as it once
was.

Kennedy,

Can you give any more detailed info on this (onlist or off); I can't seem to
find any, and would dearly love to know more about whether I should set my
ppi to 240 or 360 as some say, or just leave it as you seem to suggest. I'm
not doubting you; it's just that my scientific curiosity wants to know more
about it!

Bob Frost.

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