William Optics Zenithtar 80 FD - Manual (Page 7)

Bundle Equipment
1. Practical aluminum carrying case, with custom-fitted foam,
water resistant and carry-on size.
2. L-bracket
3. 2" to 1.25" adapter
4. 2" extender (necessary to reach visual focus with most eyepieces,
but not necessary with WO binoviewers).
Storage and Cleaning
P09
www.william-optics.com
P10
Crafting the Earth's Finest
Astronmical Instruments
We recommend storing all equipment in an air tight container with desiccate packages
to remove unwanted humidity from the air. Never leave the telescope in a humid
environment, and avoid leaving the scope in a hot heated environment. If not properly
stored, it is possible for the scope to develop mildew growth or other preventable
conditions. Be careful after a night of observing when conditions might leave dew on
the lens, and allow the scope to air dry in a room temperature environment before storing
the telescope.
If the front lens surface becomes dusty, smeared, shows fingerprints, or any other
surface build up, the following steps can be taken to clean the lens. First, gently blow
away any surface dust or particles with a clean air blower (canned or compressed air is
not recommended). Second, use a photographic quality optical cleaning solution and
cloths to gently wipe the surface clean. A clean cloth should be used every time that
cleaning is needed. With proper care, and protection, cleaning should rarely be needed.
The Zenithstar has a beautiful high gloss anodized finish that can be easily smudged
with fingerprints; however this will not harm the finish. A slightly dampened clean soft
cloth with plain water should be enough to clean the surface. Please avoid any harsh
chemical cleaners or organic solvents like benzene, alcohol, etc, as these may ruin the
finish.
Caution! Never directly view the Sun with your telescope!
Do not aim your telescope at the Sun without a front mounted high
quality professionally manufactured solar filter. Viewing the Sun without
the proper protection may result in permanent severe damage to your
eyes, and even cause blindness. Contact your Authorized WO Dealer
if you are interested in purchasing a compatible and proper solar filter.
Always place the telescope on a flat surface, to prevent it from falling
and injuring yourself or others.
Never use the telescope in the rain or in conditions where it may get
wet. The telescope is not designed to be waterproof. If the telescope
accidentally gets caught in the rain, immediately wipe off all water
using a clean dry soft cloth. If the telescope gets totally soaked in
water, immediately contact your Authorized WO Dealer for service
instructions.
Do not disassemble or attempt to repair your telescope without a
written authorization from William Optics Corp., as this violates the
warranty terms under the limited product warranty, and negates any
guarantee.
Caution for Safety
1:10 means that for every ten full rotations of the small fine-focus knob the large
knob rotates once.
2 . 5 m m
Allen key
Focuser Tension
Adjustment Screw
Drawtube Lock
Thumb Screw
All WO telescopes, including ZenithStar, are now fitted with a smooth and precise
dual speed 1:10 focusing system.
Tension should be adjusted only when necessary by progressively tightening the
screw until you reach the desired tension.
The focuser drawtube tension can be adjusted using a 2.5mm Allen key on the
screw protruding from the black hollow ring.
Make sure that the black ring is always tight against the focuser.