09. CALIBRATION
The Merlin-50 automatically calibrates its thermal sensor shortly
after start-up.
You can set whether automatic calibration should be performed
during operation in the menu item "Calibration".
With manual calibration, the image is only cleaned when you
press the calibration button (4) yourself.
If you want to cause as little noise as possible during calibration,
you can perform calibration with the lens cover held up manually
by long-pressing the calibration button (4). The automatic shutter
noise is then omitted.
Calibration is necessary if the image shows increased noise and
structures that have nothing to do with the scene being viewed.
10. UC MODE
In weather conditions with high relative humidity, a haze appears
in the thermal image. With the switchable Ultra-Clear mode (UC),
this haze can be reduced.
> In the main menu – long press on the menu button (5) – select
the corresponding menu item.
> Briefly press the menu button (5) to change the menu item.
11. VIDEO OUTPUT
After activating the video-out function, the picture can be
transmitted analogue in PAL format to external monitors via the
supplied USB combination cable.
12. COMPASS AND PROTRACTOR
In the centre of the upper edge of the screen you can read off
various values for orientation:
• The cardinal direction as a letter abbreviation and in degrees,
• the angle of inclination upwards and downwards (Vertical),
• and the angle of inclination about the horizontal (Horizontal)
axis.
The shooter refers to oblique angle shots.
MERLIN-50 · Operating Manual 08 / 2021
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