To Bob, Austin, and others,
Based on the discussion, an interesting question is raised. Since 720 ppi is
needed by the printer driver for a desktop printer and 360 ppi for a wide
format printer, is it better to send the printer files with less than 320 or
720 ppi and let it upsample the image or to send it files with more than
320 or 720 ppi and let the printer driver downsample them - leaving aside
the option of doing such resampling prior to sending the file to the
printer?
-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Bob Frost
Sent: Tuesday, October 21, 2003 9:02 AM
To: laurie@advancenet.net
Subject: [filmscanners] Re: Pixels and Prints
Eugene,
240 dpi is not all that is needed, because the Epson driver upsamples that
(or any other dpi you send it) to 720 dpi (desktop printers), using Nearest
Neighbour type upsampling. So 720 dpi is what is needed by the driver. The
question is can you get better results by upsampling to 720dpi yourself
(using QI for example that upsamples with various superior methods -
bicubic, lanczos, vector, etc). You seem to be suggesting that you can't,
but others suggest you can.
Bob Frost.
----- Original Message -----
From: "Eugene A La Lancette PhD MD" <lalancet@massmed.org>
240 dpi is all that is needed.
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