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Telescopes
Best of Telescopes
Best Telescopes for Kids Best Telescopes for Beginners Best Telescopes for Astrophotography Best Telescopes for Viewing Planets Best Telescopes for Eclipses Best Telescopes Under $500 All Telescopes Telescopes on Sale
By Type
Celestron NexStar Celestron StarSense Explorer Refractors Reflectors Dobsonians Scmitd Cassegrain - SCT GoTo and Computerized Table Top Spotting Scopes Guide Scopes Solar Telescopes Optical Tube Assembly - OTA Astrographs All Telescopes
By Brand
Askar Celestron Explore Scientific Meade Orion SharpStar Sky-Watcher Tele Vue Unistellar William Optics All Telescopes
Start Here
Buying Your First Telescope So You've Got a Telescope: Now What?
Astrophotography
Cameras
Deep Sky Planetary and Lunar Guiding Cameras Solar All Cameras
Filters
LRGB Filters SHO Filters 3nm Filters Light Pollution Dual Band UV/IR Cut All Filters
Accessories
Auto Focusers and EAF Filter Wheels Filter Drawers Focusing Masks Off Axis Guiders - OAG Smartphone Adapters
By Brand
ZWO Optolong Antlia QHY Orion Baader Planetarium Sharpstar Astrophotography William Optics Astrographs All Astro PrimaLuceLab
Start Here
Astrophotography for Beginners How to Use a Star Adventurer Tracker How to Shoot the Moon
Solar Photography
Daystar Instruments - Quark Meade PST, Coronado Lunt
Mounts and Tripods
By Type
Alt Azimuth Equatorial GoTo and Computerized Harmonic Manual Star Trackers All Mounts and Tripods
By Brand
iOptron Sky-Watcher Celestron Tele Vue Explore Scientific All Mounts and Tripods
Accessories
Counter Weights Mounting Hardware Hand Controllers Mini Piers Polar Scopes Vibration Pads GPS and Wifi Modules All Accessories
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Zooms 0-5mm 6-10mm 11-15mm 16-20mm 21mm and Up All Eyepieces
By Type
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Straps and Accessories
Birding Field Guides
Accessories
By Brand
ADM Antares Baader Planetarium Celestron Kendrick Astro Lunt Solar Orion Pacific SharpStar Sky Instruments Sky-Watcher Starfield Starizona Stellarvue Tele Vue Telrad Thousand Oaks All Accessories
By Type
Auto Focusers and EAF Battery Packs Books Carry Cases and Bags Celestron NexStar Accessories Dew Management Diagonals Flashlights and Laser Pointers Microscopes Mounting Hardware Planispheres Polar Scopes and Alignment T-Rings and T-Adapters Reducers and Flatener Smartphone Adapters Solar Filters
All Accessories Essential Astronomy Accessories
STEM
Microscopes Rock Tumbling STEM Toys CMY Cubes
Learning Center
Helpful Articles
Astrophotography for Beginners Series Choosing the Best Beginner Telescope Upgrading Your Telescope Eyepieces Is the Celestron NexStar the Best Telescope?
Videos
Nexstar Videos
Astrophotography
Step 1: Using the Star Adventurer Tracker Step 2: How to Shoot the Moon Step 3: Choosing Gear for Deep-Sky Imaging Step 4: Shooting Deep-Sky Images
Buying Your First Telescope
Part One: What’s the Best Telescope? Part Two: Making the Choice Part Three: Our Recommendations (2022)
Using Your First Telescope
Part One: Tips for Happy Stargazing Part Two: Aligning a GoTo Scope
Birding
How to Buy the Best Binoculars for Birding Get the Most Out of Your Binoculars Bird Watching 101: Your Essential Guide
Brands
Visual Astronomy
Baader Planetarium Celestron Coronado Explore Scientific iOptron Kendrick Astro Lunt Meade Orion Sky-Watcher Tele Vue Unistellar
Astrophotography
Antlia Askar Daystar Instruments Founder Optics Optolong Pegasus Astro PrimaLuceLab QHYCCD Sharpstar William Optics ZWO
Birding and Binoculars
Kowa Leica Pentax Zeiss
New Additions
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Home / William Optics America

William Optics America

In a relatively short time, William Optics has established itself and its products as one of the world leaders in short-tube, highly-portable refractors, and has achieved quality recognition for many accessories such as the well celebrated WO Diagonals.

They produce fine instruments both for the entry-level and the top-end segments. Far from limiting themselves to astronomy, in accordance to the founders’ passion for nature in all its aspects, they produce superior products for the bird-watching enthusiast and the casual observer alike.

In Stock
William Optics
William Optics RedCat 51 II APO Petzval OTA (L-RC51II)
No reviews
$870.00

The wildly popular RedCat has earned it's place as a legendary astrograph. These use premium glass to deliver accurate color, a flat image, and a wide field. They're great little scopes, perfect for imaging massive...

In Stock
William Optics
William Optics Slide-Base UniGuide 32mm Scope (M-G32PB)
2 reviews
from $115.00

The 32 mm UniGuide guide scope from William Optics has a focal length of 120 mm and a focal ratio of f/3.75. The guide scope comes with a Vixen-style slide-base. This base is compatible with...

In Stock
William Optics
William Optics Slide-Base UniGuide 50mm Scope (M-G50PB)
No reviews
from $172.00

The 50 mm UniGuide guide scope from William Optics has a focal length of 200 mm and a focal ratio of f/4. The guide scope comes with a Vixen-style slide-base. This base is compatible with...

In Stock
William Optics
William Optics Vixen Style Base Mount
No reviews
from $231.00

This innovative William Optics Vixen Base is an upgrade for the iOptron SkyGuider Pro. This upgrade is not only 100% precision CNC made, but it greatly improves the stability and adjustment for these iOptron and...

In Stock
William Optics
William Optics Adjustable Flatteners for ZenithStar 61/73 (P-FLAT)
1 review
from $231.00

A must have add on for anyone looking to take great photos. This flattener will ensure that you have a non distorted image at the edges of the frame. Match this flattener with your ZenithStar...

Special Order
William Optics
William Optics Gran Turismo 71 Triplet APO (w/ Optional 0.8x Flattener/Reducer) (A-F71GTII)
No reviews
from $939.00

The stunning Gran Turismo 71 Apo is the new jewel of the apochromatic refractor world. From the pristine white finish on the CNC tube to the elegant red or gold trim, this telescope has more...

In Stock
William Optics
William Optics ZenithStar 61II Doublet APO (A-Z61II)
2 reviews
from $603.00

This Z61 refractor gives a high power performance both visually and, when paired with the P-FLAT61R (not included), for lunar photography. The ZenithStar 61 is a great instrument you'll be able to appreciate for several...

In Stock
William Optics
William Optics 50mm Guide Scope with a Unique 1.25" RotoLock (M-G50)
No reviews
from $149.00

All new, a unique, RotoLock high-quality fully multi-coated WO 50mm f/4 Guiding scope that fits perfectly on your William Optics scope and other telescopes.The tube diameter is 54mm with a 58mm dew shield. Convenient Guiding...

Special Order
William Optics
William Optics x0.8 Reducer Flattener 7A (P-FLAT7A)
No reviews
$671.00

Specifications

In Stock
William Optics
William Optics RedCat 71 APO Petzval OTA (T-C-71)
No reviews
$1,708.00

When 51mm isn't quite enough you can step up to this super-sized RedCat. The same legendary optical design and premium glass in a larger aperture option. These are pretty incredible astrographs.

Special Order
William Optics
William Optics ZenithStar 81 Doublet APO (w/ Optional 0.8x Flattener/Reducer) (A-Z81)
1 review
from $894.00

The 81mm ZenithStar APO refractor from William Optics is a great addition to the ranks of telescopes that are devoted to providing fantastic astro-images through high-quality optics and chromatic aberration correction.

Special Order
William Optics
William Optics STC Astro Duo-Narrowband 48mm Filter (YF-STC-ADN)
No reviews
$410.00

Astro Duo-Narrowband filter is designed to capture specific wavelengths of gaseous and planetary nebulae. Of particular interest to astrophotographers is the Hα emission line at 656nm and OIII lines at 500nm, performing high transmissions and...

Special Order
William Optics
William Optics STC Ultra Layer Astro Multispectra 48mm Filter (YF-STC-M48)
No reviews
$202.00

STC Astro Multispectra filter is a general-purpose light pollution suppression filter designed to use with DSLRs cameras. It will effectively reduce the interference from artificial lightings, such as mercury and sodium street light, yet allow...

Special Order
William Optics
William Optics Large Soft Carry Cases
No reviews
from $179.00

Soft carry case for 98mm to 132mm series telescopes. Made of high quality nylon fabric with water resistant coating on the inside surface. Features the company name and swan logo on the outside, carrying handles,...

Special Order
William Optics
William Optics Small Soft Carry Cases
No reviews
from $60.00

Soft carry case for 61mm/71mm/81mm series telescopes. Made of high quality nylon fabric with water resistant coating on the inside surface. Features the company name and swan logo on the outside, carrying handles, and shoulder...

Special Order
William Optics
William Optics 2x Barlow Nosepiece for Binoviewer (E-BINO-B2)
No reviews
$45.00

This 2-power nose piece barlow makes it easier to focus with most telescope. It can be screwed onto 1.25" eyepieces as well as binoviewers. For even more magnification, it can be placed after the optional...

Special Order
William Optics
William Optics Binoviewer Complete Package (E-BINO-P)
No reviews
$298.00

William Optics does it better and especially cheaper! Until today, you could choose only between high-end expensive binoviewers or monocular eyepiece observation. Today you can enjoy the benefits of BaK4 quality binoviewers in your refractor,...

Special Order
William Optics
William Optics x0.72 Reducer Flattener 8 (P-FLAT8)
No reviews
$708.00

Specifications

Special Order
William Optics
William Optics Flattener 68III (P-FLAT68III)
No reviews
$634.00

Specifications

Special Order
William Optics
William Optics Adjustable Reducers for ZenithStar 61/73 (P-FLAT)
No reviews
from $298.00

A must have add on for anyone looking to take great photos. Match this reducer with your ZenithStar 61 or 73 telescope.

In Stock
William Optics
William Optics Gran Turismo 81 WIFD Triplet APO (T-GT-81 WIFD)
No reviews
from $2,010.00

The New Gamechanger Introducing the William Optics Internal Focus Design (WIFD) Apochromatic Series. This innovative and revolutionary design combines a precision (Patented) internal focusing mechanism with the highest quality optics available, providing the ultimate Apochromatic...

In Stock 2% OFF
William Optics
William Optics Cat61 RedCat 61 WIFD f/4.9 Petzval APO Refractor Telescope (L-RC61)
No reviews
$1,608.00 $1,639.00

The wildly popular William Optics RedCat has earned it's place as a legendary astrograph and the new 61mm variant builds on that. William Optics has added their innovative Internal Focus Design WIFD to improve compatibility...

Special Order
William Optics
William Optics Fluorostar 120 APO Triplet OTA (A-F120-RP33)
1 review
from $3,317.00

The William Optics FluoroStar 120 Refractor is an air-spaced triplet APO. Using three elements made of high-end fully coated glass like FPL-53 virtually removes chromatic aberration and produces images that are sharp and full of...

Special Order
William Optics
William Optics Fluorostar 132 APO Triplet OTA (A-F132IV)
No reviews
from $4,404.00

The William Optics FLT 132 APO Telescope is a high quality Apochromatic Imaging and visual use telescope with an aperture of 132 mm and a focal length of 910 mm for an f-ratio of f/6.9.

Special Order
William Optics
William Optics Fluorostar 156 APO Triplet OTA (A-F156)
No reviews
from $7,441.00

The William Optics Fluorostar 156 APO OTA is a high quality Apochromatic Imaging and visual use OTA with an aperture of 156 mm and a focal length of 1217 mm or an f-ratio of f/7.8.

In Stock
William Optics
William Optics Fluorostar 91 APO Triplet OTA w/ 3.3" R&P Focuser (T-FLT-91-RP33)
No reviews
from $2,010.00

The FLT 91 employs FPL-53 glass and has an optical design consisting of three elements. ln addition, with STM-coatings enabling superb optical performance, the FLT 91 provides excellent quality that is tough to match.

Special Order
William Optics
William Optics Gran Turismo 81 IV Triplet APO (A-F81GTIV)
No reviews
from $1,547.00

The William Optics Gran Turismo 81 Imaging APO Telescope is a high quality Apochromatic Imaging optical telescope with an aperture of 81 mm and a focal length of 478 mm or an f-ratio of f/5.9,...

In Stock
William Optics
William Optics ZenithStar 73 Doublet APO (A-Z73III)
No reviews
from $735.00

Zenithstar 73 is a greatly versatile and portable refractor telescope for beginners and veterans alike. Designed for both astrophotography and wildlife photography, high power visual observing through the Zenithstar 73 is also hugely satisfying.

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Contact Us info@all-startelescope.com tel. 587-336-6621Location: 3263 Parsons Road NW, Edmonton Alberta, T6N1B4