The secondary mirror can be adjusted by using the 3
screws (figure 25). Releasing it can make the secondary
mirror support to rotate. So make sure you only adjust a
screw at a time to avoid it. The secondary mirror should
always show up as a circle and not an ellipse. Please make
sure this is the case.
As soon as you get the primary mirror and the primary
mirror pads centred (figure 22 – 2) you are good to go to
the next step.
6.1.2. The primary mirror needs to be adjusted. Adjusting
the primary mirror will move the secondary mirror
reflection to the centre. Use the 6 screws on the back of
the telescope. Notice that 3 screws are used to adjust the
tilt of the primary mirror while the three others are used
to hold the tilt position. Adjust the primary mirror so that
you get all reflections centred (figure 22 – 3). Your
telescope is now collimated. Check the diffraction rings
(figure 23) and repeat it necessary.
ATTENTION! Never look at the Sun through a telescope. Concentrated
Sun light may cause serious eye injury. Children should use only with
adult supervision!
Figure 24. Vanes and primary pads.
Figure 25. Secondary mirror adjustment screws.
Figure 26. Primary mirror adjustment screws.
Figure 23. Diffraction Rings: 1. good
alignment and 2. Poorly aligned
