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VIDAR
User Manual
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To use auto tracking, an anchor point must be defined, that is the image that needs to be sharp
when enabling this function. It is best to set this anchor point (enable auto tracking) with the
following conditions met:
•
Zoom is at telephoto end
•
Iris fully open
•
Image is sharp
A number of zoom/focus pairs may be set and recalled as presets using the Presets menu.
There are two new buttons on the Live view optics interface: Auto Zoom-Focus Setup and Direct
Focus.
Auto Zoom-Focus Setup button:
Its function is to automatically adjust the zoom (appropriate viewing angle) and focus (focusing on a
specific subject). Its current operation is trying to determine the distance from the camera to the
object in the optical center of the camera, and then adjusting the optics to the appropriate zoom
position based on the resulting distance and the desired angle of view. It will then automatically
refocus the image according to the specified distance. (Currently, the viewing angle can be specified
in Plain config (URL: http://CAM_IP/#plainconfig) in the setup / geometry module with the
parameters 'lane_width' and 'lane_count'. Their default values are 3 and 1.)
Direct Focus button:
The distance-based focus function can be triggered with the button. By clicking the button, the
camera calculates where to focus at a given zoom position so that the image is sharp at the
measured or calculated subject distance.
Both function keys are currently only displayed for cameras with LIDAR!
Due to the nature of the optics, enabling Auto Tracking at zoom positions close to the wide-
angle position may result in inaccurate image refocus at zoom positions close to telephoto.
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