Archived posting to the Leica Users Group, 2007/09/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The Epson driver runs at a native resolution of 360 ppi. If you send the printer anything else it resamples the image. This resolution is not to be confused with the dither or screening resolution which on the 3800 may be anywhere from 720 to 2880 dpi (and at some resolutions the dot size is variable). Note that the setting in Ligtroom is "ppi" that's Pixels Per Inch; and the various settings in the Epson Print Dialog are "dpi" Dots (of ink) Per Inch. So to answer your question a little more directly, no there is nothing wrong with specifying 480 ppi, but the printer driver will down-sample the file, and it may be a little slower because the 480 ppi file is larger. Hope this helps, Gilbert http://www.upstatelight.com On Sep 7, 2007, at 10:35 PM, Charles Hehl wrote: > I am trying to optimize my printing with an Epson 3800. I am using > Lightroom to process the images. > > I have a few questions regarding maxium usable resolution of a > photo sent to an Epson 3800 for printing. > > Lightroom has an option in the print module for specifying the > resolution (dpi) of the file sent to the printer. The range of > values specified in Lightroom is 72-480 dpi. I seem to recall > reading somewhere that there was an upper limit to the resolution > of the file being sent to the printer...i.e., anything greater > than say 300 dpi was wasted. > > Does anyone know what the upper limit is for an Epson 3800? Is > there a problem with specifying 480dpi Lightroom as the default? > > Thanks in advance for any insights. > > Charles Hehl > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information