Vixen ED100Sf - Manual (Page 3)

Page 2
ATTACHING THE FINDER SCOPE
(1)Back out the adjustment screw on
the finder bracket to allow passage of
the finder scope. (Make sure the
adjustment screws do not fall off the
bracket.) (2)Side the rubber O‐ring onto the eyepiece end
of the finder. There are two grooves on the finder
tube. Position the O‐ring on the narrow groove at
the middle of the finder tube.
(3) Pull up the fixed stud on
the bracket ring and pull it
so that the finder tube
slides into the bracket ring
from its eyepiece end.
Release the fixed stud so
the wide groove on the
finder tube is underneath
the stud. (4) Tighten the two adjustment screws so that the
finder scope is
aligned as shown
in the figure.
Loosen the finder bracket lock thumbscrew on the
telescope. Attach the finder bracket as shown in the
figure, tighten the finder bracket lock
thumbscrew securely.
ALIGNING THE FINDER SCOPE –
Be sure to align the finder scope before you begin
observing.
(1) Choose a conspicuous target in the distance and place the target in
the center of the field of view of the telescope. (In the illustration, a
distant tower is brought into the center of the field of view of the
telescope.)
(2) Next, look through the finder scope. You should probably find the
same target somewhere within the finder’s field of view. (The
finder scope has crosshairs.)
(3) Align the optical axis (field of view) of the finder scope with the
optical axis (field of view) of the telescope. Adjust the finder scope
by loosening or tightening the adjustment screws A and B(In Figure
#4 Above) until the target is in the same position, in the center of
the crosshairs. (In the illustration, the top of the tower is in the
center of the crosshairs.)