Raymarine TH-Series User Reference page 12

3—Operating Your TH-Series Camera
When the highest brightness level is reached, subsequent
button presses advance to the next lower brightness levels.
When the lowest brightness level is reached, subsequent button
presses advance to the next higher brightness level.
One of the following icons is displayed for approximately three
seconds after the button is pressed indicating the current
brightness level:
Note
When the TH-Series camera is powered Off, the Display
Brightness button, when held on, turns on the LED Tasklight.
White Hot/Black Hot/Marine Red Button
Use this button to toggle between the three video
palettes. In the default White Hot palette, hotter
objects appear as white or light grey. In Black Hot,
hotter objects appear as black or dark grey. The
Marine Red palette is based on the White Hot pallet,
but the hottest objects in the scene are red to help
maintain normal night vision.
While white hot is the most commonly used and visually intuitive
method of viewing thermal imagery; black hot can often enhance
contrast of certain objects or provide better visual perspective in
some conditions. When switching between palettes, the
appropriate icon is displayed for approximately 3 seconds.
8
Lowest
White hot Black hot
TH-Series User reference
Highest
Marine Red
July 2011