Meade Instruments Infinity 80, 90 and 102mm Refractor User Manual
Page 16
• Fingerprints and organic materials
on the front lens may be removed with
a solution of 3 parts distilled water to
1 part isopropyl alcohol. You may also
add 1 drop of biodegradable dishwashing
soap per pint of solution. Use soft, white
facial tissues and make short, gentle
strokes. Change tissues often.
CAUTION: Do not use scented or lotioned
tissues or damage could result to the optics.
DO NOT use a commercial photographic
lens cleaner.
CHANGING THE VIEWFINDER BATTERY
If the viewfinder red dot does not illumi-
nate, verify the viewfinder is on by rotating
the knob (10) below the viewfinder lens
clockwise. If the red dot does not illumi-
nate, the battery may need replacing.
To replace the battery, press the left side
of the viewfinder housing labeled “push”.
The battery compartment will slide out on
the right side of the viewfinder (see
Fig.
7).
Replace the battery with a Lithium
CR2032 battery with the positive side up.
Then push the battery compartment back
14
Looking at or near the
Sun will cause irreversible damage to your eye. Do not point this telescope at or near the Sun. Do not look through the telescope as it is moving.