Robert Montgomery said:
What resolution should my painting be scanned at, using a Cruse Synchron
Table scanner?
My painting that will be scanned is 34.5 by 54 inches.
My final output size will be maximum 63 percent of that size of the
painting, on an Epson 7600 printer.
The output will be professional quality art prints.
Just as a general rule, Art work may need as much a 1200 DPI to resolve any
fine lines.
On the other hand if the art is a water or oil painting 300 DPI may be
plenty.
It is a try it and see what your results are. You can probably view the scan
on your computer screen if you show the image on screen as actual pixels.
The Image will more that fill the computer screen, you have to scroll around
in the image to see what you have.
You should resize the image to the size you want after scanning to get the
print output that you want.
It depends mostly on what software you have at hand to do the job.
If you are not going to do any resizing in a photo editor, then to get the
300 dpi output to the printer, for a 21 x 33 inch print you would need to
have 6300 X 9,882 pixel image.
That means that the 34.5 x 54 inch print would have to be scanned at 183
DPI.
To do it right I would scan at 300 dpi and resize the image for the printer.
I use Irfanview or PhotoShop Elements 3 for my image resizing and printing.