DOCTER DOCTER®sight C - Manual (Page 14)

If you determine a deviation from the target point (light dot) to the hit point after the
first shoot, you can correct it as follows:

Hit point below the target point (gun shoots too deep):
Turn the adjustment screw in the Up direction.

Hit point above the target point (gun shoots too high):
Turn the adjustment screw in the Down direction.

Hit point to the left of the target point (gun shoots too far left):
Turn the adjustment screw in the R (Right) direction.

Hit point to the right of the target point (gun shoots too far right):
Turn the adjustment screw in the L (Left) direction.
One scale division corresponds to a shift of 3 cm at 100 m or to 1 angular minute. In
case of other shooting adjustment distances, the adjustment value changes
proportionally to the distance. For example:
1,5 cm at 50 m or 3 mm at 10 m
Brightness Control of Light Dot
Using an integrated control electronics, the different lighting conditions in the practical
use are considered. The light dot intensity is automatically adapted according to the
environmental brightness in target direction. The measurement is analog to the
sensitivity of the human eye. When the sensor at the front side of the sight is
covered, a visible brightness reduction of the light dot occurs. Therefore, the sensor
must not be covered by gun parts.
Maintenance and Care
To clean the optics, use glasses cleaning clothes. Before doing that, the optics
surfaces should be carefully cleaned using a soft and clean cloth or a hair brush
where no chemical solvents are to be applied.
Heavy dirt should be removed using distillated water. Otherwise, furrings can occur
on the surfaces.
In case of possibly function-affecting damages, the device has to be sent to an
authorized service workshop.
Hints
Due to their specific construction, DOCTER red-dot reflex sights do not have a
diopter compensation unit or other function units that compensate for the visual
defect of the human eye.
Thus, all individual visual defects of the respective shooter have a direct effect on the
contour of the perceived light dot.
Seeming ovality, sickle-shaped distortion, "star clusters" or a "frayed" contour of the
dot do not mean a defective device, but rather and exclusively mean a physiological
change of the eye (astigmatism).Then, it is recommended to use corrective glasses
or to have the eyes checked by an ophthalmologist.