Filter
Top Products
44
While your telescope requires little maintenance, there are a few things to remember that will ensure your telescope
performs at its best.
C
C
a
a
r
r
e
e
a
a
n
n
d
d
C
C
l
l
e
e
a
a
n
n
i
i
n
n
g
g
o
o
f
f
t
t
h
h
e
e
O
O
p
p
t
t
i
i
c
c
s
s
Occasionally, dust and/or moisture may build up on the objective lens of your telescope. Special care should be taken
when cleaning any instrument so as not to damage the optics.
If dust has built up on the lens, remove it with a brush (made of camel’s hair) or a can of pressurized air. Spray at an
angle to the lens for approximately two to four seconds. Then, use an optical cleaning solution and white tissue paper
to remove any remaining debris. Apply the solution to the tissue and then apply the tissue paper to the lens. Low
pressure strokes should go from the center of the lens to the outer portion. Do NOT rub in circles!
You can use a commercially made lens cleaner or mix your own. A good cleaning solution is isopropyl alcohol mixed
with distilled water. The solution should be 60% isopropyl alcohol and 40% distilled water. Or, liquid dish soap
diluted with water (a couple of drops per one quart of water) can be used.
Occasionally, you may experience dew build-up on the lens of your telescope during an observing session. If you want
to continue observing, the dew must be removed, either with a hair dryer (on low setting) or by pointing the telescope
at the ground until the dew has evaporated.
If moisture condenses on the inside of the lens, remove the accessories from the rear cell of the telescope. Place the
telescope in a dust-free environment and point it down. This will remove the moisture from the telescope tube.
To minimize the need to clean your telescope, replace all lens covers once you have finished using it. Since the rear
cell is NOT sealed, the cover should be placed over the opening when not in use. This will prevent contaminants from
entering the optical tube.
Internal adjustments and cleaning should be done only by the Celestron repair department. If your telescope is in need
of internal cleaning, please call the factory for a return authorization number and price quote.