Skip to content
Enjoy Free Shipping on Orders Over $500 + Same-Day Dispatch (Before 3 PM*) *Some exclusions apply
Enjoy Free Shipping on Orders Over $500 + Same-Day Dispatch (Before 3 PM*) *Some exclusions apply

Products

Filters
$
$
Original price $4,337.00 - Original price $4,337.00
Original price
$4,337.00
$4,337.00 - $4,337.00
Current price $4,337.00

William Optics Cat 91 WIFD 30th Anniversary Edition LIMITED QUANTITY (T-C-91-30)

William Optics

William Optics Cat 91 WIFD 30th Anniversary Edition  LIMITED QUANTITY Step up your astrophotography game with the William Optics RedCat 91, an adva...

View full details
Original price $4,337.00 - Original price $4,337.00
Original price
$4,337.00
$4,337.00 - $4,337.00
Current price $4,337.00
Original price $4,137.00 - Original price $4,137.00
Original price
$4,137.00
$4,137.00 - $4,137.00
Current price $4,137.00

William Optics Cat 91 WIFD Refractor (T-C-91)

William Optics

William Optics Cat 91 WIFD Step up your astrophotography game with the William Optics RedCat 91, an advanced apochromatic refractor tailored for fu...

View full details
Original price $4,137.00 - Original price $4,137.00
Original price
$4,137.00
$4,137.00 - $4,137.00
Current price $4,137.00
Original price $83.00 - Original price $83.00
Original price
$83.00
$83.00 - $83.00
Current price $83.00

William Optics Cat Series Saddle Handle Bar (HCRC)

William Optics

William Optics Cat Series Saddle Handle Bar The William Optics Cat Series Saddle Handle Bar is a Vixen type saddle handle-bar for our uniguide or o...

View full details
Original price $83.00 - Original price $83.00
Original price
$83.00
$83.00 - $83.00
Current price $83.00
Original price $192.00 - Original price $192.00
Original price
$192.00
$192.00 - $192.00
Current price $192.00

William Optics D Series 400mm Dovetail Plate

William Optics

William Optics D Series Dovetail Plate   Technical Specifications Length 400mmWeight 1.43kg Type : Losmandy In the Box William Optics D Se...

View full details
Original price $192.00 - Original price $192.00
Original price
$192.00
$192.00 - $192.00
Current price $192.00
Original price $52.00 - Original price $80.00
Original price
$52.00 - $80.00
$52.00 - $80.00
Current price $52.00

William Optics Dual side Dovetail Plate

William Optics

William Optics Dual side Dovetail Plate Vixen-style & Arca Swiss Type In the Box Selected length and color of Dual side Dovetail Plate Warranty...

View full details
Original price $52.00 - Original price $80.00
Original price
$52.00 - $80.00
$52.00 - $80.00
Current price $52.00
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00

William Optics Extension Bar For iOptron Skyguider Pro (M-IO-EB20RD)

William Optics

William Optics Extension Bar For iOptron Skyguider Pro Length: 11.9cm Weight: 105g Technical Specifications Length 40cmWeight 1.43kg In the Box W...

View full details
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00
Original price $384.00 - Original price $384.00
Original price
$384.00
$384.00 - $384.00
Current price $384.00

William Optics Flat61 for ZenithStar 61 (P-FLAT61A)

William Optics

William Optics Flat61 for ZenithStar 61 This flattener is for ZenithStar 61.            Technical Specifications Telescope Side Connection M54x...

View full details
Original price $384.00 - Original price $384.00
Original price
$384.00
$384.00 - $384.00
Current price $384.00
Original price $330.00
Original price $330.00 - Original price $330.00
Original price $330.00
Current price $230.00
$230.00 - $230.00
Current price $230.00

William Optics Flat61 for ZenithStar 61 - USED (P-FLAT61A-U)

William Optics

William Optics Flat61 for ZenithStar 61 - USED This flattener is for ZenithStar 61.    Technical Specifications Telescope Side Connection M54x0....

View full details
Original price $330.00
Original price $330.00 - Original price $330.00
Original price $330.00
Current price $230.00
$230.00 - $230.00
Current price $230.00
Save $100.00 Save $0.00
Original price $384.00 - Original price $384.00
Original price
$384.00
$384.00 - $384.00
Current price $384.00

William Optics Flat73A for Z73 (P-FLAT73A)

William Optics

William Optics Flat73A for Z73            Technical Specifications Telescope Side Connection M63x1 Thread- Male Camera Side Connection ...

View full details
Original price $384.00 - Original price $384.00
Original price
$384.00
$384.00 - $384.00
Current price $384.00
Original price $1,087.00 - Original price $1,087.00
Original price
$1,087.00
$1,087.00 - $1,087.00
Current price $1,087.00

William Optics Flattener FLAT68III (P-FLAT68III)

William Optics

William Optics Flattener FLAT68III The William Optics Flattener 68III was made for 6 -7.5 F ratio refractors. This high-quality flattener has been ...

View full details
Original price $1,087.00 - Original price $1,087.00
Original price
$1,087.00
$1,087.00 - $1,087.00
Current price $1,087.00
Original price $4,965.00 - Original price $4,965.00
Original price
$4,965.00
$4,965.00 - $4,965.00
Current price $4,965.00

William Optics Fluorostar 120 f/6.5 Triplet Refractor (A-F120)

William Optics

William Optics Fluorostar 120 A precision-crafted apochromatic refractor designed to meet the exacting demands of modern astrophotographers. Wit...

View full details
Original price $4,965.00 - Original price $4,965.00
Original price
$4,965.00
$4,965.00 - $4,965.00
Current price $4,965.00
Original price $6,897.00 - Original price $6,897.00
Original price
$6,897.00
$6,897.00 - $6,897.00
Current price $6,897.00

William Optics Fluorostar 132 with 3.7" Rack and Pinion Focuser

William Optics

William Optics Fluorostar 132 Triplet APO f/7 with 3.7" Rack and Pinion Focuser Simply put: a joy to use. You will be blown away by the small deta...

View full details
Original price $6,897.00 - Original price $6,897.00
Original price
$6,897.00
$6,897.00 - $6,897.00
Current price $6,897.00
Original price $12,417.00 - Original price $12,417.00
Original price
$12,417.00
$12,417.00 - $12,417.00
Current price $12,417.00

William Optics Fluorostar 156 with 3.7" Rack & Pinion Focuser

William Optics

William Optics Fluorostar 156 A premium apochromatic refractor designed for both avid stargazers and serious astrophotographers. This telescope fe...

View full details
Original price $12,417.00 - Original price $12,417.00
Original price
$12,417.00
$12,417.00 - $12,417.00
Current price $12,417.00
Original price $3,033.00 - Original price $3,033.00
Original price
$3,033.00
$3,033.00 - $3,033.00
Current price $3,033.00

William Optics Fluorostar 91 f/5.9 Triplet Refractor (FLT-91)

William Optics

William Optics Fluorostar 91 The FLT 91 is the perfect Apochromatic refractor for visual and photographic astronomers demanding excellence in a mid...

View full details
Original price $3,033.00 - Original price $3,033.00
Original price
$3,033.00
$3,033.00 - $3,033.00
Current price $3,033.00
Original price $1,515.00 - Original price $1,515.00
Original price
$1,515.00
$1,515.00 - $1,515.00
Current price $1,515.00

William Optics Gran Turismo 71 Triplet + FLAT6AIII Bundle

William Optics

William Optics Gran Turismo 71 Triplet APO f/5.9 + FLAT6AIII Bundle   Technical Specifications Aperture 71mm Focal Length 419mm Fo...

View full details
Original price $1,515.00 - Original price $1,515.00
Original price
$1,515.00
$1,515.00 - $1,515.00
Current price $1,515.00
Original price $1,515.00 - Original price $1,515.00
Original price
$1,515.00
$1,515.00 - $1,515.00
Current price $1,515.00

William Optics Gran Turismo 71 Triplet APO f/5.9 (A-F71GTII)

William Optics

William Optics Gran Turismo 71 Triplet APO f/5.9       Technical Specifications Aperture 71mm Focal Length 419mm Focal Ratio f/5.9 Camera...

View full details
Original price $1,515.00 - Original price $1,515.00
Original price
$1,515.00
$1,515.00 - $1,515.00
Current price $1,515.00
Original price $2,481.00 - Original price $2,481.00
Original price
$2,481.00
$2,481.00 - $2,481.00
Current price $2,481.00

William Optics Gran Turismo 81 IV Triplet APO f/5.9

William Optics

William Optics Gran Turismo 81 IV Triplet APO f/5.9 The William Optics Gran Turismo 81 IV Triplet APO f/5.9 has been designed to deliver excellent ...

View full details
Original price $2,481.00 - Original price $2,481.00
Original price
$2,481.00
$2,481.00 - $2,481.00
Current price $2,481.00
Original price $1,850.00 - Original price $1,850.00
Original price
$1,850.00
$1,850.00 - $1,850.00
Current price $1,850.00

William Optics Gran Turismo 81 IV Triplet APO f/5.9 + Reducer - USED (F81GTIVRD-U)

William Optics

William Optics Gran Turismo 81 IV Triplet APO f/5.9 - USED This telescope is in really good condition. Please note that no Dovetail is included. Co...

View full details
Original price $1,850.00 - Original price $1,850.00
Original price
$1,850.00
$1,850.00 - $1,850.00
Current price $1,850.00
Original price $549.00 - Original price $549.00
Original price
$549.00
$549.00 - $549.00
Current price $549.00

William Optics Guide Star 61

William Optics

William Optics Guide Star 61 Designed exclusively for high-quality imaging and precision guiding. Featuring the acclaimed FPL53 ED doublet lens, id...

View full details
Original price $549.00 - Original price $549.00
Original price
$549.00
$549.00 - $549.00
Current price $549.00
Original price $397.00 - Original price $397.00
Original price
$397.00
$397.00 - $397.00
Current price $397.00

William Optics High Latitude Vixen Base Mount with Extension Bar for iOptron Skyguider Pro (YG-IO-SG01H-RD-P)

William Optics

William Optics High Latitude Vixen Base Mount with Extension Bar for iOptron Skyguider Pro 100% precision CNC made .It’s big upgrade for the sta...

View full details
Original price $397.00 - Original price $397.00
Original price
$397.00
$397.00 - $397.00
Current price $397.00
Original price $397.00 - Original price $397.00
Original price
$397.00
$397.00 - $397.00
Current price $397.00

William Optics High Latitude Vixen Style Base Mount (YG-IO-SG01H)

William Optics

William Optics High Latitude Vixen Style Base Mount 100% precision CNC made . It’s big upgrade for the stability and adjustment Adjustment from...

View full details
Original price $397.00 - Original price $397.00
Original price
$397.00
$397.00 - $397.00
Current price $397.00
Original price $163.00 - Original price $163.00
Original price
$163.00
$163.00 - $163.00
Current price $163.00

William Optics iOptron Skyguider Pro Dec adapter & Vixen style Clamp

William Optics

William Optics iOptron Skyguider Pro Dec adapter & Vixen style Clamp weight:370g   In the Box SP90 Saddle Plate for Vixen Dovetails iOptr...

View full details
Original price $163.00 - Original price $163.00
Original price
$163.00
$163.00 - $163.00
Current price $163.00
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00

William Optics iOptron Skyguider Pro Dec adapter (M-IOPSG-SPM)

William Optics

William Optics iOptron Skyguider Pro Dec adapter    In the Box William Optics iOptron Skyguider Pro Dec adapter Warranty & Manuals Willia...

View full details
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00
Original price $80.00 - Original price $80.00
Original price
$80.00
$80.00 - $80.00
Current price $80.00

William Optics Longer Adjusting Adapter for FLAT68III, FLAT7A (AD-M80-45-M48)

William Optics

William Optics Longer Adjusting Adapter for FLAT68III, FLAT7A This adjustable adapter offers a convenient, efficient way to upgrade your WO diagona...

View full details
Original price $80.00 - Original price $80.00
Original price
$80.00
$80.00 - $80.00
Current price $80.00
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00

William Optics M48 Push-in Nosepiece for WO 2" Diagonals (WD-DIG2A)

William Optics

William Optics M48 Push-in Nosepiece for WO 2" Diagonals  Special Reduced Price ! Take advantage of this high quality adapter nose piece for almost...

View full details
Original price $54.00 - Original price $54.00
Original price
$54.00
$54.00 - $54.00
Current price $54.00
Original price $105.00 - Original price $105.00
Original price
$105.00
$105.00 - $105.00
Current price $105.00

William Optics M63 to M48 Photo Adapter (P-PAM63-48)

William Optics

William Optics M63 to M48 Photo Adapter    Technical Specifications Weight:185g In the Box William Optics M63 to M48 Photo adapter Warranty &...

View full details
Original price $105.00 - Original price $105.00
Original price
$105.00
$105.00 - $105.00
Current price $105.00
Original price $76.00 - Original price $76.00
Original price
$76.00
$76.00 - $76.00
Current price $76.00

William Optics Micro 4/3 48mm T mount for Olympus - Space Gray (TM-MFT-M48)

William Optics

William Optics Micro 4/3 48mm T mount for Olympus - Space Gray   In the Box William Optics Micro 4/3 48mm T mount for Olympus - Space Gray (WO-YE...

View full details
Original price $76.00 - Original price $76.00
Original price
$76.00
$76.00 - $76.00
Current price $76.00
Original price $1,293.00 - Original price $1,363.00
Original price
$1,293.00 - $1,363.00
$1,293.00 - $1,363.00
Current price $1,293.00

William Optics MiniCat 51 f/3.5 WIFD (T-C-MINI-RD)

William Optics

William Optics MiniCat 51 f/3.5 WIFD Designed for photography enthusiasts who love wide-angle views. Its standout feature is an ultra-bright f/3.5 ...

View full details
Original price $1,293.00 - Original price $1,363.00
Original price
$1,293.00 - $1,363.00
$1,293.00 - $1,363.00
Current price $1,293.00
Original price $3,033.00 - Original price $3,033.00
Original price
$3,033.00
$3,033.00 - $3,033.00
Current price $3,033.00

William Optics NEW Internal Focus Design Gran Turismo 81 WIFD (GT81-WIFD)

William Optics

William Optics GT81 Internal Focus Design WIFD Apochromatic Series THE NEW GAME CHANGER Introducing the WILLIAM OPTICS Internal Focus Design (W...

View full details
Original price $3,033.00 - Original price $3,033.00
Original price
$3,033.00
$3,033.00 - $3,033.00
Current price $3,033.00
Original price $5,793.00 - Original price $5,793.00
Original price
$5,793.00
$5,793.00 - $5,793.00
Current price $5,793.00

William Optics Pleiades 111 APO F/4.8 WIFD (T-P-111BU)

William Optics

William Optics Pleiades 111 APO F/4.8 WIFD Pleiades 111, 7-element imaging APO, F/4.8 WIDF. Comes with soft carry bag, dovetail, handle bar, M48 an...

View full details
Original price $5,793.00 - Original price $5,793.00
Original price
$5,793.00
$5,793.00 - $5,793.00
Current price $5,793.00
Original price $27,597.00 - Original price $27,597.00
Original price
$27,597.00
$27,597.00 - $27,597.00
Current price $27,597.00

William Optics Pleiades 181 APO F/5.5 WIFD (T-P-181RD)

William Optics

William Optics Pleiades 181 APO F/5.5 WIFD Elevate your stargazing and astrophotography experience with the newly launched Pleiades 181 by William ...

View full details
Original price $27,597.00 - Original price $27,597.00
Original price
$27,597.00
$27,597.00 - $27,597.00
Current price $27,597.00
Original price $3,033.00 - Original price $3,033.00
Original price
$3,033.00
$3,033.00 - $3,033.00
Current price $3,033.00

William Optics Pleiades 68 APO F/3.8 WIFD (T-P-68BU)

William Optics

William Optics Pleiades 68 APO F/3.8 WIFD Pleiades 68, 7-element imaging APO, F/3.8 WIFD. Comes with soft carry bag, dovetail, handle bar, M48 and ...

View full details
Original price $3,033.00 - Original price $3,033.00
Original price
$3,033.00
$3,033.00 - $3,033.00
Current price $3,033.00
Original price $145.00 - Original price $145.00
Original price
$145.00
$145.00 - $145.00
Current price $145.00

William Optics Red Dot finder Kit with Vixen Style Mounting Base (M-RDF-P-VB)

William Optics

William Optics Red dot finder Kit with Vixen Style Mounting Base This very practical Red Dot Finder (R.D.F.) comes with a handy, quick -release bra...

View full details
Original price $145.00 - Original price $145.00
Original price
$145.00
$145.00 - $145.00
Current price $145.00
Original price $1,225.00 - Original price $1,225.00
Original price
$1,225.00
$1,225.00 - $1,225.00
Current price $1,225.00

William Optics Redcat 51 WIFD F/4.9 Petzval Refractor (L-RC51RDIII-WIFD)

William Optics

William Optics Redcat 51 WIFD F/4.9 Petzval Refractor As seen on the RedCat 61 series, the patented William Optics Internal Focus Design (WIFD) mak...

View full details
Original price $1,225.00 - Original price $1,225.00
Original price
$1,225.00
$1,225.00 - $1,225.00
Current price $1,225.00
Original price $1,929.00 - Original price $1,929.00
Original price
$1,929.00
$1,929.00 - $1,929.00
Current price $1,929.00

William Optics Redcat 61 WIFD F/4.9 Petzval Refractor (T-C-61RD)

William Optics

William Optics Redcat 61 WIFD F/4.9 Petzval Refractor Introducing the Redcat 61 Astrograph f/4.9, a masterpiece of precision engineering. With its ...

View full details
Original price $1,929.00 - Original price $1,929.00
Original price
$1,929.00
$1,929.00 - $1,929.00
Current price $1,929.00
Original price $2,013.00 - Original price $2,013.00
Original price
$2,013.00
$2,013.00 - $2,013.00
Current price $2,013.00

William Optics RedCat 71 f/4.9 APO with WIFD (T-C-71RDII)

William Optics

William Optics RedCat 71 f/4.9 APO with WIFD The RedCat series is one of the most popular lines of compact refractors on the market and it is easy ...

View full details
Original price $2,013.00 - Original price $2,013.00
Original price
$2,013.00
$2,013.00 - $2,013.00
Current price $2,013.00
Sign Up to Astronomy Plus Newsletters

Subscribe to our Newsletter to be the first to be inform about Promotions, New Products and More!

Free Shipping

in Canada over 500$+* bf txs

Buy Now, Pay Later

Paybright and Sezzle at Check Out

Target the Right Equipment

Contact us!

Price Match

Find a Better Price? We Will Match it!

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare