Zeiss Diatal T Série Mode D'emploi page 11

Instructions for use
Installation
In order to ensure that the rifle and riflescope work together perfectly as a
single unit, the riflescope should always be fitted by a qualified gunsmith.
Injuries to the eye resulting from the rifle's recoil can be avoided by properly
fitting the riflescope at the correct distance from the eye. The correct distance
from the eye also ensures that the full field of vision is available.
Aligning the riflescope to the weapon
Aligning the Classic riflescope to the weapon, correcting deviations from the
impact point, is simplified via the click stops for height and lateral adjustment
of the reticle. Proceed as follows:
a) After unscrewing protective cap (1), the reticle can be can be adjusted
vertically (8) and laterally (9) with the adjusting knob. 1 click corresponds to
an adjustment of 1 cm at 100 m for Classic riflescopes.
If the weapon shoots low, it requires an upward correction ("H"), in other
words turn the adjusting knob (8) clockwise. If the weapon shoots high,
it requires a downward correction ("H"), in other words turn the adjusting
knob (8) counter clockwise. If the weapon shoots to the left, it requires
a correction to the right ("R"), in other words turn the adjusting knob (9)
clockwise. If the weapon shoots to the right, it requires a correction to the
left, in other words turn the adjusting knob (9) counter clockwise.
b) After zeroing in, pull the knob (8 or 9) up from the locking mechanism and
set the zero mark on the graduated ring (10) to the index mark (11). Push the
knob (8 or 9) down into the locking mechanism. The index serves as a reference
guide for further adjustments to the reticle (for other distances or loads).
c) Do not forget: replace screw cap (1).
Classic riflescopes are so constructed that even a corresponding movement of
the reticle is not noticeable when adjusting the reticle.
The reticle always remains in the centre of the image during all adjust-
ments!
The reticle is set to the middle of the adjustment range and the zero mark on
the adjusting ring (10) to the index mark (11) at delivery of your Classic riflescope.
From this initial setting, an upward, downward, right or left adjustment is
possible for more than half of the adjustment ranges given in the following table.
All Classic riflescopes can be equipped with a bullet drop compensator.