Custom White Calibration - Hasselblad FlexColor V4 Software Reference Manual

do need a longer exposure time, then remember to change the setting in
FlexColor to match the setting on your camera.
Note, however, that if you are working with a camera body that allows
you to set the shutter speed from FlexColor, then you can just set the
exposure time for each capture by using the Shutter time setting.
Aperture
Some camera bodies allow you to adjust the aperture from your computer.
If you are using one of these bodies, then the Aperture setting controls
your camera body. For other camera bodies, this setting will be inactive
(grey).
ISO
The ISO pop-up enables you to select between sensitivities of ISO 50 or
100. If you are using an Ixpress camera back you will be able to select
between ISO 200 and 400 as well.
This setting will also be reflected on the General tab in the Setup window
(see "General Tab" on page 32).

Custom White Calibration

The Custom White calibration can be used to compensate for cast effects
introduced by wide angle lenses or tilt settings. This is done by adjusting
the factory white calibration based on an actual capture made with the
exact lens and tilt settings that you need to use.
To perform the calibration click the Custom White... button and follow the
directions given in the appeaaring window.
Software Reference - FlexColor 4.0 for Camera Backs
The Exposure Window
Custom White Calibration
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