What dpi in JPG for best printing

[Al Franz]

Couple questions regrading max. dpi to use in a JPG file for scanning
prints and printing the scanned images on a nice inkjet (i.e. 1200x1200
or 1440 x 720dpi)

Maximum dpi to Scan a photograph ?

I have heard that after 300 dpi you are beyond what information the
photograph actually has thus you really don't get much more advantage

Maxium dpi to print a scan of a color photograph ?

Do the nicer ink jet printers produce better quality if you use those
huge JPG files such as 600 or 1200 dots per inch. At what point does it
become sufficient?

[Bryan in Monmouthshire, UK]

For work to go on the wall as a 10x8, I scan at whatever dpi setting that
gives me a file around 5 to 8 MB - which I usually get scanning at 300. For
best results on my Epson 750 I print at 1440dpi using Epson ink and Epson
heavyweight gloss paper. Before printing I darken the image slightly and
increase the contrast slightly. You will never get exactly the same image
on paper (reflected light) as the image on the screen (transmitted light).
Bryan

--

From border Monmouthshire, between the Severn bridges ...

We've rescued the last Severn ferry boat from the scrap yard!
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Al Franz <alb...@netmation.com> wrote in message
news:8rjcms$fq5$1...@eskinews.eskimo.com...

[Kay]

If printing the same size as the original, 250 dpi is fine, printed
originals and snapshots dont contain more information than that.

Al Franz <alb...@netmation.com> wrote in article
<8rjcms$fq5$1...@eskinews.eskimo.com>...

[J. A. Mc.]

You're better off selecting an even division of your scanner's optical
maximum. If you've a 600 dpi scanner, then scan photos at either 200
or 300.

Using a 250 dpi, will cause the scanner's software to interpolate
between two cells of the scanner, weighting them appropriately.

Typical 1 hour photo paper is about 200 dpi resolved. I scan at 300
(600 dpi scanner) to allow cropping and other adjustments. Then, too,
I re-print to 5x7 on a Phaser 740P. This is a slight format
alteration.

Most printers will interpolate (expand) the image to blend the dots
more acurately. The Phaser has a 'smooth' function that really give
near continuous tonality.

On Sat, 07 Oct 2000 17:24:02 GMT, "Kay" <ws...@home.com> tweaked a
mouse's tail to post: