Your scans look pretty good. This bit of advice appeared in an old thread on scanners.
It has to do with the type of scanning element used by the scanner (CCD vs CIS), not an adjustment of the focal depth. Generally speaking, scanners with CCD elements "see" more depth so that they can scan 3-dimensional objects (slabbed cards, books which do not lay flat on the glass, pins or buttons, even baseballs in some instances I've seen), whereas scanners with CIS elements generally require the object being scanned to be flat against the glass and are focused at that specific depth. I am not aware of any desktop flatbed scanner, of either element type, that allows the focal depth to be adjusted. Even with CCD scanners, if you wanted to optimize the scanning depth, you would need to raise or lower the object being scanned (as with the variable-height scanning trays for film scanning offered by betterscanning.com).
So does your new scanner have a CCD or CIS element?
|