Configuring The Lens, Dynamic Focus - Barco HDX-4K20 FLEX User Manual

Image 12–4 Example of the lens shift menu
2. Use the ◄ and ► keys to shift the lens (image) in horizontal direction.
Use the ▲ and ▼ keys to shift the lens (image) in vertical direction.

12.3 Configuring the lens, dynamic focus

About focus drift and dynamic focus
Due to the design of ultra-short throw lenses (UST lenses), this type of lens tends to heat up over time when
used in projectors. This has the side-effect of a shift in focus between the lens in its cold state and the lens in
its heated state, which is referred to as "focus drift".
While there are external solutions available that perform a "focus drift compensation", a dynamic focus feature
is implemented from software version 2.0 onward that handles this focus drift. While enabled, the projector will
perform the necessary calculations in order to handle this drift in focus.
Projector Toolset can be used to calibrate this feature. For more info on the focus drift calibration,
consult the Projector Toolset user guide.
How to enable dynamic focus?
1. To enable dynamic focus mode, select Installation → Lens.
The Lens menu is displayed.
Image 12–5 Example of the Lens menu
2. In the Lens menu, click Dynamic focus to toggle between On and Off.
GUI – Installation
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