Digital BW, The Print

Bob and Austin,
So far all I read is pure theory and second guessing. Has anyone 
actually tried to make a high res. file with say, Photoshop and 
print at differing output resolutions to see at what point there is 
no visible diffence? Much in the manner of a lens testing chart.
If it has already been done maybe someone could publish a URL.
I personally am only interested in the finished print and not the 
theory. 
If you can come up with a suitable target I would like to get hold 
of a copy.

Barry

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Bob Frost" 
<bobfrost@b...> wrote:
> Austin,
> 
> Not quite so easy I'm afraid, according to Epson. It is dependant 
not only
> on the driver, but also on the OS and the software program you are 
printing
> from. For example, Epson state the OS limit for the 3000 is 44", 
the
> Photoshop limit is 41", the Adobe Illustrator limit is 227", The
> QuarkExpress limit is 48", and the Coreldraw limit is 1800"!!
> 
> However, having read the Epson blurb again, I'm not sure where the 
boundary
> is. The 7000 and up are certainly large-format, but whether the 
3000, 5000,
> and 5500 are 'desktop' or not isn't absolutely clear to me. But 
the test is
> simply whether the page limit size in PS is 41" or 82".
> 
> My 1290 certainly has a limit of 41.666 inches. If you set the ppi 
to 720 in
> Image Size and try and enter a height of 100 inches, it puts up an 
error
> message and defaults to 41.666.
> 
> Bob Frost.
> 
> ----- Original Message -----
> From: "Austin Franklin" <darkroom@i...>
> 
> 
> >
> > Easy to tell.  If it resamples to 720, your maximum print length 
is ~44",
> > and if it resamples to 360, max print length is ~88".
> >
> > > Are 2200's and
> > > 1280's considered desktop or large format?
> >
> > I would assume desktop.  Even the 3000 is desktop, as it has a 
max length
> of
> > 44".