Raymarine T300 Operation And Setup Manual page 25

You may find it useful to experiment with this option to find the best
setting to suit your needs.
System operation and setup
White-hot thermal image.
Black-hot thermal image.
Thermal and visible-light operation
"Dual payload" thermal cameras are equipped with 2 camera lenses
— a thermal imaging (infrared) camera lens and a visible-light
camera lens.
Thermal camera rear view mode
The rear view mode flips the video image horizontally, providing a
"mirror image".
This is useful for example in instances where the camera is
rear-facing and you are viewing the image on a forward-facing
monitor.
Thermal camera lens —
provides night-time imagery,
based on temperature
differences between objects.
Thermal imaging produces
a clear image even in total
darkness.
Visible-light camera lens —
provides black and white (or
greyscale) imagery during the
day and in low-light conditions.
Helps to improve navigational
abilities in low-light conditions;
for example during twilight
hours when operating along
intercoastal waterways and
near harbor entrances.
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