3
Extendable Dew/Glare Shield
Your telescope features an extendable dew/glare shield (
Figure
1). Extend it prior to observing by pulling it forward until it clicks
to a stop. Extending the shield will inhibit dew formation on the
objective lens in moist conditions and will improve image con-
trast by blocking light from entering from the periphery to cause
unwanted glare.
Care & Maintenance
Give your telescope reasonable care and it will last a lifetime.
When not in use, keep its dust cover on as well as the dust cap
on the eyepiece opening. Store it in the foam-lined telescope
case (
Figure 3) indoors or in a dry garage. Do not leave the tele-
scope outside when not using it. The optical tube is carbon fiber
material underneath a protective “clear coat” surface. It is best to
clean the surface with a soft cotton towel and window cleaner. A
Figure 2
.
A)
The 1.25” Dual Speed Crayford focuser in detail.
B)
Underside of the focuser.
Figure 3
.
The ED66-CF and accessories in their aluminum-clad
carrying case.
Finder scope
base
Rotation collar
Fine focus wheel
Coarse focus
wheel
Dovetail
mounting bar
1/4"-20 holes
Drawtube
tension
thumbscrew
Accessory
collar
Millimeter
scale
paper towel may scratch the clear coat finish. If a scratch does
appear on the tube, it will not harm the telescope.
To clean the telescope’s objective lens as well as the lens of
the eyepiece, any quality optical lens tissue and cleaning fluid
specifically designed for multi-coated optics can be used. Never
use regular glass cleaner or cleaning fluid designed for eye-
glasses. Before cleaning with fluid and tissue, however, blow any
loose particles off the lens with a photographer’s blower bulb or
compressed air, or lightly brush the lens with a soft camel hair
brush. Apply some cleaning fluid to a tissue, never directly on
the optics. Wipe the lens gently in a circular motion, then remove
any excess fluid with a fresh lens tissue. Oily fingerprints and
smudges may be removed using this method. Use caution; rub-
bing too hard may scratch the lens! Clean only a small area at a
time, using a fresh lens tissue on each area. Never reuse tissues.
A
B
