11
Insert the DADOS 20mm
eyepiece (or the DADOS
10mm eyepiece for higher
magnification) into the
focusing eyepiece holder.
Lock the eyepiece with any of
the three locking screws.
2.2 Focusing the spectrum
Point the 2” nosepiece
(#1 on the page 5 diagram) to
a fluorescent light source or a
neon lamp.
Do not point
directly to the Sun
Rotate the focuser (#7) in
order to focus the spectrum.