The key to correct scanning is understanding both your source size and your
target size. Some tips to follow:
Make sure you are scanning the photo only
Set your target size to the size you want us to print
Set your resoulution to 200 to 300 DPI
It is also
important to check to make sure your scanner bed and photograph is free from
any dust or other particles or they will show up in your scanned image
as well. When enlarged this can detract from the print.
Scanning Slides or Negatives
Most scanners on the market today allow you to scan your 35 MM negatives.
Some Helpful Advice When Scanning Negatives
Make sure the scanner surface is free of any dust, and lint
Set your resolution to 200 to 300 DPI
Scan your negative at the print size you want
Check your scanned image for any discolorations or scratches that may need
to be edited out