White Balance |
V1.70a |
Correct white balance adjustment is important for exact color reproduction!
Each time the lighting condition changes, the Visualizer's camera must readjust its white balance, in order to optimize the color reproduction. The lighting condition (color temperature) changes, for example, if changing between the Visualizer's light and an external lightbox (bottom light) or if the room light is turning on or off.
The default setting of the Visualizer is "Auto Tracking" white balance. This means that the white balance is continuously adjusted automatically.
For an accurate white balance, at least 10% of the recorded image should be white.
For a precise fixed white balance adjustment use the "One Push" white balance in the on-screen menu. When the white balance is stored an on-screen message appears. Setting a "One Push" white balance switches off the "Auto Tracking" mode (when the unit is switched off and on again the "Auto Tracking" mode will be reactivated).
Normally there is no need for manual white balance adjustment. However, if the colors on the screen still appear to be incorrect, the white balance can be adjusted manually (one-push):
Hints to perform a One-Push white balance:
Top light:
Zoom in on a white object (e.g. a sheet of paper) until there is only white on the screen and perform (a one push) white balance.
Lightbox with transparencies:
Turn off the light of the Visualizer with the LIGHT key and switch on the lightbox. Remove everything from the lightbox, zoom to the smallest picture size until there is only white on the screen and perform (a one push) white balance.
Lightbox with x-rays:
Turn off the light of the Visualizer with the LIGHT key and switch on the lightbox. Place an x-ray on the lightbox, zoom out until the whole x-ray is picked up perform (a one push) white balance.
Please note
False color can also be caused by incorrect color settings on a connected projector or monitor. It is recommended to first adjust the white balance of the Visualizer and if the results are still not satisfactory, the monitor or projector should be checked.
For specialists: The Visualizer can be switched between "Auto Tracking" and "Manual" white balance mode in the on-screen menu. If you work with negative transparencies and a lightbox, use a blank (black in the image) part of the negative film for white balance adjustment!
The "Auto Tracking White Balance" is optimized for the built-in top light.