imacon Flextight Progression, User Manual

Page: 30 / 226

Imacon Flextight Progression UserÕs Guide
Hardware ReferenceÑFlextight Progression
Calibrating the Scanner
28
English
2. Position the white calibration sheet on the electrostatic tray as
described in ÒScanning Thin Reßectives with the FlatbedÓ on
page 17.
3. Select
White Calibration
from the
Maintenance
window. The
External White Calibration window appears.
4. Click on Calibrate . The scanner will take several scans of the white
target. The process will take about eight minutes.
5. Remove the electrostatic plate and mount the white calibration tar-
get between the glass plates as described in ÒScanning Batches and
Thick Reßectives with the FlatbedÓ on page 19. Repeat this proce-
dure from step 3.
CCD Calibration
To make sure all of the pixels in the CCD react equally to low levels of
light, your scannerÕs CCD must be calibrated. If it is not, you may see
some faint single-pixel striping in very dark areas of positives or in
light areas of images that were scanned from negatives. The problem,
which is present in all CCD scanners, is most noticeable when you scan
35 mm negatives.
The CCD calibration information is stored in a ßash PROM inside the
scanner, not on your hard disk. This means that the CCD calibration
(unlike the white calibrations) is preserved when you move the scanner
to a new computer.