Product Manual

12
4.4 Focusing and Sighting
(1) Reticle Cross Hairs
Point telescope to sky or a uniformly light surface,
turn eyepiece until cross hairs are sharp and black.
The dioptric scale now indicates the correct
setting for the observer’s eye.
(2)Target Image Focusing
Loosen horizontal and vertical clamps. Point
telescope to target by means of optical sight.
Tighten clamps. Look through telescope eyepiece
and turn focusing ring until target is seen. Set
cross hairs close to target by turning horizontal and vertical tangent screw. Complete
focusing by turning ring until target image is sharp and free from parallax, i.e. there
should be no apparent movement between cross hairs and target as observer moves
his eye slightly. If there is parallax, remove by adjusting the focusing ring slightly.
Arrows on the ring indicate the direction to infinity.
Fig. 16
Telescope
plate