I-CAM 380/I-CAM 640 P-SERIES USER MANUAL
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8-7
Digital Zoom
The imager offers digital zoom. Press the W (zoom out) and T (zoom in) buttons
on the device to perform digital zoom operation. When zoomed in or zoomed
out, the zoom factor displays in the upper middle portion of the screen with a
magnifying glass icon.
8-5
Manual Focus/Auto Focus
Press up or down on the Thumbstick to adjust the focus. When the target comes
into focus, it shows a sharper image. When the target moves out of focus, the
thermal image becomes blurry.
Users can also program the Custom Button (C button) to function as an auto
focus. If programmed, aim at the target object, press the C button; then, wait
until focusing is finished.
Correct focus is important in all imaging applications. Correct focus makes sure
that the infrared energy is correctly directed onto the pixels of the detector.
Without the correct focus, the thermal image can be blurry, and the radiometric
data will be inaccurate.
W
T
C
W
T
C
or
8-6
Non-uniformity Correction
Non-uniformity correction (NUC) is used to compensate for the non-uniformity
of detector pixels or other optical interference. The infrared device features
an automatic NUC operation. Press the C button to perform a manual NUC
operation. When performing a correction operation, the user will hear a click
from the device and the image will freeze temporarily. The image may clear of
some noise grain after the device makes its adjustments.
