UMTI User Manual
UMTI
Page 9
3.4.2
Focal Adjustment
Adjust the viewfinder/eyepiece by using the adjustment ring, as seen below. This changes the focal
length of the eyepiece, to suit the individual user. Adjust the viewfinder/eyepiece until the image
can be clearly seen within the viewfinder.
Open the lens cap, aim at the target to observe, and slowly rotate the lens until the target image is
clear in viewfinder.
3.4.3
Electronic Zoom
In order to get a closer look at an object press the
button use the electronic 2x zoom.
3.4.4
Internal/External Reference
Long press the
key to enter the internal reference.
Long press the
key to enter the External reference.
About internal/External reference
：
In some special cases, such as when the difference be
tween IR camera’s body temperature and
environmental temperature is big, a non-uniformity correction problem can occur. Under these
cases, please use the "External reference" to adjust the IR camera. Normally it is recommended to
use the "internal reference".
Please Note:
When using the “External Reference”, please cover the lens with the lens cap.
