7250 dpi Scanner Introduced by Pacific Image Electronics

On Wed, 25 Jul 2007 20:37:26 -0700, "William Graham"
wrote:

I have done this several times with my KM-5400. (Scanned the same negative
or slide twice. Once at 5400 and once at 2700) I don't see any difference,
but then I am usually scanning slides taken with a hand-held 35 mm
camera.

I've seen a small difference on some frames but not enough to make
it worth dealing with files four times as large. I suspect that the
optics of the scanner aren't capable of maintaining much detail at
5400 ppi.

7200 ppi makes me even more suspicious. That requires optics that can
resolve down to five times the wavelength of red light: not out of the
question for expensive equipment but far out of the range of consumer
products.

--
Matthew Winn
[If replying by mail remove the "r" from "urk"]

On Jul 26, 5:40 pm, Matthew Winn wrote:


7200 ppi makes me even more suspicious. That requires optics that can
resolve down to five times the wavelength of red light: not out of the
question for expensive equipment but far out of the range of consumer
products.

I've got a funny suspicion this is a rebadged old Kodak scanner
model , with 1:2 interpolation to make it go to 7200.

Check this out:

http://www.creativepro.com/story/review/14922.html

This was a 3600dpi scanner. Double the rez and you got
7200 spot-on. And the cases couldn't be more equal.

Me theenks PIE has bought the right to make this thing
from Kodak - or its contract with them to make it
has expired - and naturally they want to put their
own spin in the product.

Still darn good value for the price if it is interpolated
and the presence of GEM, ICE and ROC is also
welcome, but definitely no match for the coolscan
5000ED in the optics.

"Noons" wrote in message
oups.com...
On Jul 26, 5:40 pm, Matthew Winn wrote:


7200 ppi makes me even more suspicious. That requires optics that can
resolve down to five times the wavelength of red light: not out of the
question for expensive equipment but far out of the range of consumer
products.

I've got a funny suspicion this is a rebadged old Kodak scanner
model , with 1:2 interpolation to make it go to 7200.

Check this out:

http://www.creativepro.com/story/review/14922.html

This was a 3600dpi scanner. Double the rez and you got
7200 spot-on. And the cases couldn't be more equal.

Me theenks PIE has bought the right to make this thing
from Kodak - or its contract with them to make it
has expired - and naturally they want to put their
own spin in the product.

Still darn good value for the price if it is interpolated
and the presence of GEM, ICE and ROC is also
welcome, but definitely no match for the coolscan
5000ED in the optics.


The marketing brochure claims that it has 7200 dpi optical resolution, not
interpolated.