Orion StarMax 90 Instruction Manual page 2

Illustration 1: Telescope Parts - side view
Cautions
Do not point the telescope at the sun. Looking
at the Sun with this telescope can cause eye
damage and blindness.
Do not touch or attempt to clean the optics
(corrector plate and eyepiece). Some dust or
dirt will not affect the view. The optics can be
damaged by improper cleaning. Return the
telescope to the library for cleaning.
The Telescope
The tabletop telescope will provide stunning
views of the Moon, planets, and the brighter star
clusters and nebulae. The telescope will produce
right side up terrestrial images, however they will
be mirror images, as will the celestial images.
Telescope parts (see
illustrations 1 & 2)
Zoom eyepiece: Focal length is adjustable from
from 21 mm (60X) to 7 mm (180X). The
eyepiece has a rubber eye cup than can be folded
down for eyeglass wearers.
Optical tube: Contains the primary optical
components: A corrector plate, a thick meniscus
lens that corrects the light entering the telescope
for the spherical mirrors. 90 mm primary mirror
at the bottom of the tube, and a secondary mirror
which is an aluminized spot on the back of the
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