William Optics 80 FD User Manual
WILLIAM OPTICS USA
Crafting the Earth's Finest Astronmical Instruments
www.william-optics.com
William Optics Corp.
ZENITHSTAR 80
Fluorite Doublet
INSTRUCTION MANUAL
CONTACT US
WILLIAM OPTICS USA
Toll Free: +1-866-918-6888 (For USA only)
Tel: +1-714-898-7989
Fax: +1-714-892-6067
web: www.william-optics.com
e-mail: wo@william-optics.com
Crafting the Earth's Finest Astronmical Instruments
Thank you for choosing a William Optics ZENITHSTAR
Fluorite Doublet, William Optics' 10-year anniversary
telescope.
This simple step-by-step instruction manual is designed to
provide Zenithstar Fluorite Doublet (ZSFD) owners with a
better understanding of how to operate their new telescope
by providing precise, updated information.
These instructions will also guide you through how to properly
maintain the Zenithstar, and how to operate it at its maximum
capabilities.
CONTENTS
Getting to know your telescope
Zenithstar Fluorite Doublet Specifications
01
02
Please carefully familiarize yourself with your telescope's
parts and functions before operating it for the first time.
WARNING!
DO NOT USE THIS TELESCOPE UNDER ANY
CIRCUMSTANCES TO DIRECTLY VIEW THE SUN.
It could easily cause instant blindness or serious damage to your
eyes. To view the sun, use only appropriately designed solar filters
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that will reject 99.96% of the sun light and heat. Educate your family
on how to use this telescope properly during day and night time
observations. For further information please contact your local dealer.
Zenithstar Fluorite Doublet Acessories Chart
Connection Instructions ( 2 inches Diagonal Mirror )
Connection Instructions ( 2 inches 45 Erecting Prism )
Connection Instructions ( Red Dot Finder )
Connection Instructions ( Aligning R.D.F. )
Usage
Storage and Cleaning
Caution and Safety
Bundle Equipment
Optional Equipment
Recommended for This Scope
03
04
05
06
07
08
09
10
10
11
12-18
Crafting the Earth's Finest Astronmical Instruments
WO Policies & Warranty
19-20
Getting to know your telescope
Zenithstar Fluorite Doublet
Refractor Specifications
Dew shield cover
Retractable dew shield
Main tube
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Extend
Connection point
for tripod
Aperture
Focal Ratio
Focal Length
Objective Type
Resolving Power
Limiting Magnitude
Lens Shade
Focuser
1.25" Adapter
L-Type Mount
80mm
F / 6.9
555 mm
Fluorite Doublet, Air Spaced, APO
TMB co-designed Fully Multi-Coated,
STM coating
1.45"
11.3
Retractable
2" 360 Rotating Camera-Angle
Adjuster, 1:10 fine focus
Focuser Travel Length 80mm (3.15" )
1.25" Adapter & 2" extender Included
Brass Compression Rings
L Bracket Based
o
360 rotatable focuser knob
2" to 1.25" adapter
P01
L-bracket
Lock screw for
the focuser tube
1:10 fine focus knob
2" clamping screw
1.25" adapter lock screw
Field Stops
Tube Diameter
Tube Weight
Tube Length
Case
Case Dimensions
15 Baffles
90mm
2.4 kg (5.3 lbs.)
375 mm (14.7") Fully Retracted
440 mm (17.3") Fully Extended
Aluminium Case (Standard)
48 x 28 x 16cm (19" x 11" x 6.3")
P02
Zenithstar Fluorite Doublet
Accessories Chart
Connection Instructions
( 2" Diagonal Mirror )
Step-1
90mm
Mounting
Rings
Finder Bracket
(For 50mm)
Aluminium Case
(Standard)
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EZTouch
Finder Bracket
(For 30mm)
Quick-Release
Bracket
2" Photo
Adapter
2" Extender
2" Diagonal
Mirror
2" 45
Erecting Prism
Dovetail
7x50 Erecting
Finderscope
6x30 Erecting
Finderscope
Red Dot Finder(R.D.F.)
Cooling CCD
Camera
SLR / DSLR
Camera
2" Eyepiece
1.25"
Adapter
DCL-52
DCL-4337
Digital Camera
(Canon,CASIO,
SONY,OLYMPUS)
Digital
Video
Using the supplied L-Bracket, attach the
telescope to the tripod threaded with a standard
photographic 1/4-20 connection knob. Ensure
that the knob is tight or locked down before
proceeding.
Step-2
Loosen lock screw for release.
Step-3
After the telescope is firmly connected to the
tripod, extend the dew shield.
Remove 2" to 1.25" adapter.
Tighten lock screw.
P03
Tripod
Equatorial Mount
1.25" 45
Erecting Prism
(2" Barrel)
1.25"
Adapter
1.25" 45
Erecting
Prism
Violet
Reducer
Filter(VR)
DCL-28
1.25"
Eyepiece
NIKON
Digital
Camera
Above diagram is only for future connectivity purposes.
Please contact our Authorized Dealers for accessories purchase.
Crafting the Earth's Finest Astronmical Instruments
Step-4
Tighten lock screw.
Insert eyepiece for
visual observation.
P04
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