Packages Available
OTA Package [M90FD-W-OTA]
- Megrez 90 mm f/7 OTA with L-bracket base
- Aluminum Case
Combo Package 1 [M90FD-W-P]
- OTA Package as described above
- 2" 99% Dielectric Carbon Fiber Diagonal
- Mounting Rings
Combo Package 2 [M90FD-Q-PKG]
- OTA Package as described above
- 2" 99% Quartz Dielectric Diagonal
- Black 90mm Mounting Rings
Combo Package 3 [M90FD-W-EP]
- OTA Package as described above
- 2" 25mm Swan Eyepiece
- 2" 90° Erecting Prism Diagonal
Combo Package 4 [M90FD-W-SPL]
- OTA Package as described above
- Mounting Rings
- 2" 99% Dielectric Carbon Fiber Diagonal
- Set of 3 1.25" SPL Eyepieces (3mm, 6mm and 12.5mm)
The hottest refractor of the year - Megrez 90mm air spaced FPL-53 objective with STM coatings, f/6.9. A new breakthrough in mechanical and optical perfection. Comes with a 360° rotating camera-angle adjuster with integrated dual speed microfocuser. Aluminum case included. Reviewed in Sky & Telescope (May 2007) astronomy magazine with great success!
Optically Unbeatable
• Highly precise CNC machined lens cell.
• Doublet air spaced lens in adjustable lens cell. Highest-quality coatings, STM coated.
Crayford Focuser
• Extra-smooth dual speed Crayford focuser: a treat to use during photography. No more image shift!
• 360 deg. rotatable.
• Extra-heavy duty.
• Large aluminum knobs.
Patented Design
• Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.
• Ball bearings on both sides of the focuser will make your focusing experience the best you ever experienced with a scope!
• Graduated scale for precise camera alignment.
Do-All Telescope
• Solid L-bracket tripod connection. Guarantees better stability on camera tripods.
• One-piece dual speed microfocuser.
Simply Beautiful Finish
• Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, golden finish, retractable dewshield, 360 deg. rotatatable Crayford focuser, dewshield cap.
• L-bracket can be used to hold the finder bracket without problems when using mounting rings.
Attention to Details
• 2" to 1.25" adapter included in the price.
• Anti-marring brass compression rings.
Total Quality
• Each scope is tested several times both for mechanical performance and optical performance (high-power star testing) by William Optics. Aluminum Case
• Stow away your telescope in the practical and safe aluminum case.
• Though you will never need it, you have a 2-year warranty from WO, and the certainty that we will be there to assist you even beyond that, if you need!
| Aperture |
90mm |
| Focal Ratio |
f/6.9 |
| Focal Length |
621mm |
| Objective Type |
Doublet FPL-53 Air Spaced |
| Resolving Power |
1.35" |
| Limiting Magnitude |
11.5 |
| Lens Shade |
Retractable |
| Focuser |
2" 360° Rotating Camera-angle Adjuster
1:10 Dual Speed Fine Focus
1.25" Adapter Included |
| 1.25" Adapter |
Brass Compression Rings |
| L- type Mount |
L Bracket Base |
| Field Stops |
3 knife-edge Baffles |
| Tube Diameter |
90mm |
| Tube Length |
16.9" (430mm) Fully Retracted |
| Tube Weight |
7.1 lbs. (3.2kg) |
| Case |
High-quality Aluminum Case |
Case Dimensions
(WxHxD) |
23.2" x 8.3" x 7.1"
(59cm x 21cm x 18cm) |
| Case Weight |
8.3 lbs. (3.8 kg) |
If you have any comments or reviews you'd like to share with us, please email us. Thank you. |
