during
the summer, and is now being
used in the winter, or vice
versa, a small displacement of
the aiming point is possible.
The scope does not focus. Wrong settings.
Adjust the scope according to
the instructions in the
“OPERATING THE
SENTINEL” section and
check the eyepiece and
objective lens condition; if
necessary, clean the lenses of
dirt, dust, condensation, frost,
etc. to prevent fogging in cold
weather and apply a special
anti-fog solution.