I used to do 4-color process design full time. Still do sometimes.
(always good to do freelance work for a printer ;) )
A typical 4-color press can only print at 133 lpi (lines per inch) which
is 266 dpi. Your color-desk-jets even less.
If you send out to a high res color house for work, then they want it
150 lpi. Today's Heidelbergs may do better, but the press work I do
today is for typical ordinary presses.
I pride myself on the low file sizes I send out - and it comes back
perfect every time and the press men loves me because the jobs run
perfectly. Yeah, I'm a damn good pre-press girl and proud of it. :P
Side note & disclaimer: the majority of jobs I do are for commercial
print and design - local businesses, AT&T work, Lucent, Prudential. I do
not, I repeat NOT! Design stuff for glossy magazines or full color
books. I have been told that most custom houses ask for even higher dpi
images. BUT - from testing and playing, we figured out that a high end
job looked beautiful at no more than 150lpi.
So, again, *I* say it doesn't NEED to be 300-600dpi. Of course I always
do scans at 1200 - but then just resample down to 133lpi/266dpi. Every
time. B&W or color, didn't matter. Perfect results every time. :P
Cheers,
Erika
--------------------------------------------------
>>| From: Philip Arnold
>>| >
>>| > As a followup to this, I was trying to fiddle with my email
>>| > software and asked a friend to send me a "largish
>>| > attachment". I was thinking a meg or two. She picked
>>| > something 20MB. She's a graphic designer. To her that wasn't
>>| > a large attachment.
>>|
>>| You've got to consider the medium
>>|
>>| A print file needs to be 300-600dpi to be of a decent quality, while
>>| screen resolution is 72dpi, so a file can easy be 4x the
>>| size without even missing a beat
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