User manual

25 • Focus adjustment and focus calibration
ColorQuartet 5.0 Pro
206
When is focus calibration necessary
• The Calibrate Focus function is relevant if your scanner has a removable drum.
• Focus calibration can also be carried out on ScanMate flatbed scanners and on the ScanMate
3000 fixed-drum scanner, but is rarely necessary.
• Focus calibration ensures optimal adjustment of the basic focus distance for each drum, and
should in principle be carried out whenever the drum is changed.
• However, removable-drum ScanMate scanners can store the focus calibrations for up to 10
numbered drums. If your scanner is equipped with a bar code reader, the calibrations for an
additional 10 bar-coded drums can also be stored.
• This means that in practice, most drums will only need to be focus-calibrated once.
• When Autofocus is activated, ColorQuartet will find the best possible focus in most cases. You
will only need to perform focus calibration if the Autofocus function does not succeed in find-
ing a focus point for a given image.
>>> Next step:
F
ocus calibration • Drum scanners
Focus calibration • Flatbed scanners