William Optics ZENITHSTAR 126 APO User manual

ZENITHSTAR 126 APO
Owner’s Manual ver. 1.0
2018.09

Contents
Specification 3
Package Contents 4
Tools necessary for this scope 4
Telescope Diagram 5
Accessories Map 11

Specification
Aperture 126mm
Focal Ratio F/7.7
Focal Length 970mm
Image Circle Z126 with Flat 6A II Φ 43mm
Limiting magnitude 11
Objective Type Synthetic Flourite FPL 53 Doublet, Air Spaced, APO
Fully Multi-Coated, SMC coating.
Lens Shade Retractable
Focuser
Extra-smooth new 3" Crayford Focuser
360 deg. rotatable.
with 1:10 Dual Speed micro focuser
Field Stops Baffles
Mounting Rings provided
Tube Diameters 141mm
Tube Length 667mm Fully Retracted
856mm Fully Extended
Tube Weight 9.94kg (Rings and Dovetail include)

Package Contents
[1] CNC Carry Handle Bar
[3] 2.5” R&P Focuser
[5] Guiding Scope
[7] Innovative Bahtinov Mask Cover (Patented)
[2] Guiding Rings
[4] New Losmandy Style Dovetail
[6] Mounting Rings
[1]
[2] [3]
[4] [5]
[6]
[7]
Tools necessary for this scope
2.5mm Allen key
5.0mm Allen key Your Hands

1. Bahtinov Mask
2. Retractable Dew Shield
3. Main Tube
Extend
Dew Shield Lock Screw
Your Hands
Telescope Diagram

5. 2” Adapter Locking Screws
4. Focuser Rotation Locking Screw
7. 1.25” Adapter
Your Hands
6. Focuser Lock Screw
Do not over tighten
(Release the lock when focusing )

11. 10:1 Ratio Fine Knob
9.Draw Tube Holder Screws
8. Bracket Holder Screws
for Finder Bracket
10.Camera Angle Rotation Locking Screw
M2.5x7L
Your Hands
2.5mm Allen key
5.0mm Allen key

The 3” focuser drawtube smoothness can be adjusted
using a 2.5 mm Allen key and tension should be
adjusted ONLY when necessary by progressively
tightening the screw until you reach the desired
smoothness.
NOTE: DO NOT ADJUST IT BEFORE ASKING WO
2.5mm Screw
4.0mm Draw tube tension screw
Motor Bracket Screws

12. Guiding Rings &Guiding Scope
13. Handle &Guiding Rings
M5x11L
M5x7L
Your Hands
5.0mm Allen key

14. Mounting Rings & Losmandy Style Dovetail
M5x15L
15. Losmandy Style Dovetail
5.0mm Allen key

2” Diagonal
SWAN 33mm
2” to 1.25” Rotolock
CCD Camera
Flat68 III T-Mount
2” Dielectric CF Plate
(with Thermometer)
SPL 12.5mm (1.25 inch) Eyepiece
SWAN 20mm
Any mid size EQ mount
Guiding scope
3.5”-2” Rotolock
Accessories Map
3” M92
Camera Angle Rotator