Digital BW, The Print

I don't think sending 720 to a desktop Epson will ever degrade the image.
I've experimented with files that had resolutions above that and noticed
that some information was simply omitted by the driver.  As such, I would
rather have Photoshop do my re-sizing down to at most 720 for the desktop
units.  For the older large format printers I've heard that 360 is their
native resolution.  Again, Photoshop may do a better job of re-sizing than
Epson.  On the other hand, I'd be skeptical that anyone would ever see the
differences.  I usually limit the large images to 360 just to save time.  On
desktop units, however, many people claim they can see improvements up to
720.

Paul
www.PaulRoark.com 


> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of Peter
> De Smidt
> Sent: Sunday, March 12, 2006 7:00 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] File Resolution
> 
> I've finally gotten around to scanning some of my 4x5 negatives, and I
> wonder what ppi I should send to the printer. Given the large size of my
> files, I could send a 720 ppi file without resizing, but some think that
> this leads to a drop in quality.  For example, In Real World Photoshop
> CS2, Bruce Fraser and David Blatner say, "It's certainly possible to
> send too much data to an inkjet printer, not only increasing print times
> unconsciously but also degrading the image. You do not want to send a
> 1440-ppi image to a 1440 dpi inkjet." (p843.)  I seem to remember them
> saying that 720 ppi is too much as well.  They recommend 480 ppi for
> small prints, and 360 or 240 for large one.  To meet this requirement,
> I'd have to significanly down-sample my files, at least with my R2400.
> Anyone have any thoughts on this?
> 
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