Orion FUNSCOPE - Page 15

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Figure 7a. Collimating the optics. When the mirrors are properly aligned, the view
down the focuser should look something like this.
Reection of
secondary
mirror
Reection of
secondary
mirror
Reection
of primary
mirror
Reection of
your eye
Retaining
tab
Reection of
primary mirror
Eyepiece holder
Drawtube (inside)
Telescope Wall
Edge of
secondary
mirror
Edge of
secondary mirror
Secondary mirror
holder
Figure 7b. Here, the secondary mirror is centered under the focuser, but it needs
to be tilted so that the entire primary mirror is visible.