A battery box, closed with a metal sealed
screw cap fits one AA cell – it is possible
to use batteries and power packs which
have a nominal voltage from 1.2 to 3.6 V. An
electronic system of the sight is equipped
with a protection against effects of reverse
battery insertion – it will not cause any
damages, but the only effect will be a lack of
the possibilities to turn on an illumination of
the reticle. In normal operation at temperature
of 15°C, a cell – according to a manufacturer
– ensures a minimum 150 h of its continuous
operation.
The LDK-4 ensures a possibility of +/- 30 MOA
adjustments in the vertical and horizontal
plane. A magnification not lower than 3.9-time
and it is characterized by a resolving power
not worse than 1'. A lens output diameter of
the LDK-4 sight is of 32mm, a FOV is not lower
than 6°50', an exit pupil diameter is not lower
than 7.5mm, and a distance of the exit lens
from the last lens of the eye-piece – 38mm.
What is worth emphasizing – all lenses in the
CKD-1 sight were manufactured by PCO.
OPTICS
