Celestron 52291 - Manual (Page 11)

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 corrector plate of your C5
during an observing session. If you want to continue observing, the dew must be
removed, either with a Celestron Lens Shade / Dew Cap or by pointing the
spotting scope at the ground until the dew has evaporated.
If moisture condenses on the inside of the corrector, place the spotting scope in a
dust-free environment and point it down. Remove the accessories from the rear
cell of the spotting scope to allow the moisture to evaporate from the optical tube.
To minimize the need to clean your spotting scope, replace all lens covers once
you have finished using it. Since the rear ceu e .00821(c)5.325n5153(o)]TJ2593(e)1/R1033 0 0 cm BT3.2461825(n)]TJN825( )-2.00524( )-2.0T
eo