AGFA d-lab.3 Digital Compact Lab

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Repair
Order of Calibration Procedures
− Pixel correction
− Dark
− Bright
− White balance (filter / lamp calibration)
− Prescanner
− RGB
− IR
− Shutter damping
− Zoom lens
Pixel Correction (Piko)
This calibration ensures that the CCD chip is
standardised and supplies the same signals for all
pixels. Only then can the CCD be used as tool for
other calibrations, e.g. for the white balance.
The pixel correction is always performed when
modifications are carried out on the light path
which have an impact on the spacial light distribution
on the CCD (e.g. lamp change, cleaning of
filters and other optical components) or when the
electrical properties of the chip themselves change
(e.g. due to temperature).
Compulsory pixel correction:
− At the first switch-over to a larger size
− After the installation of the mirror box
− After the lamp has been moved in, even if it
was not changed.
− After the change of the negative mask
Blemish correction:
Here, defective CCD pixels are found.
4.4.28 2001-01-02 /PN 9009 AGFA d-lab.3