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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

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Original price $249.00 - Original price $249.00
Original price
$249.00
$249.00 - $249.00
Current price $249.00

William Optics Carry Soft Case for FLT132

WO-BG1-P005

Designed specifically for the William Optics FLT132 refractor Ensures a precise, secure fit for the optical tube Soft-sided construction for light...

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Original price $249.00 - Original price $249.00
Original price
$249.00
$249.00 - $249.00
Current price $249.00
Original price $50.00 - Original price $50.00
Original price
$50.00
$50.00 - $50.00
Current price $50.00

William Optics Cat Mounting Ring

WO-M-MR50RC-BL

50mm Inner Diameter Solid Aluminum Construction Anodized Blue Finish 1/4"-20 Threaded Mounting Holes Weight: 4.9 oz (140 g) Description FAQ Spe...

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Original price $50.00 - Original price $50.00
Original price
$50.00
$50.00 - $50.00
Current price $50.00
Original price $60.00 - Original price $60.00
Original price
$60.00
$60.00 - $60.00
Current price $60.00

William Optics Cat Series Saddle Handle Bar

Options available
3 variants in stock

Length: 107 mm Integrated Mini-Vixen Style Saddle Weight: 0.12 kg / 0.26 lbs Designed for William Optics Cat Series Telescopes Adds a carrying han...

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Original price $60.00 - Original price $60.00
Original price
$60.00
$60.00 - $60.00
Current price $60.00
Original price $36.00 - Original price $38.00
Original price
$36.00 - $38.00
$36.00 - $38.00
Current price $36.00

William Optics DSD 110 Plate

Options available
5 variants in stock

Dual Saddle Plate Design Accepts Vixen-Style Dovetails Accepts Losmandy D-Style Dovetails Precision CNC-Machined Construction Durable Anodized Fin...

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Original price $36.00 - Original price $38.00
Original price
$36.00 - $38.00
$36.00 - $38.00
Current price $36.00
Original price $45.00 - Original price $48.00
Original price
$45.00 - $48.00
$45.00 - $48.00
Current price $45.00

William Optics DSD 210 Plate

Options available
3 variants in stock

210 mm total length for balancing flexibility Dual-profile fits both Vixen-style and Arca-Swiss clamps 41.5 mm width provides a stable mounting su...

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Original price $45.00 - Original price $48.00
Original price
$45.00 - $48.00
$45.00 - $48.00
Current price $45.00
Original price $51.76 - Original price $58.00
Original price
$51.76 - $58.00
$51.76 - $58.00
Current price $51.76

William Optics DSD 245 Plate

Options available
2 variants in stock

Length: 245 mm Weight: 0.33 kg / 0.72 lbs Dovetail Compatibility: Vixen & Arca-Swiss CNC-machined construction Description FAQ Specificatio...

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Original price $51.76 - Original price $58.00
Original price
$51.76 - $58.00
$51.76 - $58.00
Current price $51.76
Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00

William Optics Flat4 Draw Tube Adapter for FLT (Gold) for 2007-2016 Models

WO-AD4-A006-L00GD03

Securely connects the Flat4 Field Flattener to the draw tube Designed for William Optics FLT 98, 110, 132, and 152 models Compatible with telescop...

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Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00
Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00

William Optics Flat4 Draw Tube Adapter for GT102, FLT 132 - Black for 3" V-Power Focuser

WO-AD4-A006-L00BL03

Connects William Optics Flat4 Flattener to Draw Tube Designed for the 3" V-Power Focuser Compatible with GT102 & FLT 132 (2017 Models) Ensures...

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Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00
Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00

William Optics Flat4 Draw Tube Adapter for GT102, FLT 132 - Blue for 3" V-power Focuser

WO-AD4-A006-L00BU03

Connects Flat4 Flattener to 3" V-Power Focuser Compatible with William Optics GT102 & FLT 132 Engineered for 2017 Telescope Models Secure Thre...

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Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00
Original price $60.00 - Original price $60.00
Original price
$60.00
$60.00 - $60.00
Current price $60.00

William Optics Image Plane Tilt Adjuster

WO-M-FD-RC51

Designed exclusively for the William Optics RedCat 51 astrograph Corrects image plane tilt for perfectly round stars across the frame Adds only 12...

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Original price $60.00 - Original price $60.00
Original price
$60.00
$60.00 - $60.00
Current price $60.00
Original price $91.00 - Original price $91.00
Original price
$91.00
$91.00 - $91.00
Current price $91.00

William Optics Long Version Vixen-Style Dovetail Plate

WO-M-PV-LII-RD
2 in stock

290 mm Extended Length for Balancing Standard Vixen-Style Dovetail Profile Weighs 0.64 kg (1.42 lbs) 90 mm Wide Platform for Stability Descript...

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Original price $91.00 - Original price $91.00
Original price
$91.00
$91.00 - $91.00
Current price $91.00
Original price $58.00 - Original price $58.00
Original price
$58.00
$58.00 - $58.00
Current price $58.00

William Optics Longer adjusting adapter for FLAT68III, FLAT7A

WO-AD-M80-45-M48

Connects FLAT68III & FLAT7A Flatteners to M48 Imaging Trains Provides a Fixed 45mm Optical Length Input Thread: M80 x 0.75 Male Output Thread:...

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Original price $58.00 - Original price $58.00
Original price
$58.00
$58.00 - $58.00
Current price $58.00
Original price $116.00 - Original price $139.00
Original price
$116.00 - $139.00
$116.00 - $139.00
Current price $116.00

William Optics Losmandy Style Type D

Options available
3 variants in stock

Length: 400 mm Weight: 1.44 kg / 3.17 lbs Width: 105 mm Dovetail Type: Losmandy D-Style Description FAQ Specifications In the Box Downloads War...

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Original price $116.00 - Original price $139.00
Original price
$116.00 - $139.00
$116.00 - $139.00
Current price $116.00
Original price $15.00 - Original price $15.00
Original price
$15.00
$15.00 - $15.00
Current price $15.00

William Optics M48 Female to M42 Male Adapter

WO-YE-M48-42

Connects M48 Female Threads to M42 Male Threads Adds Only 5.3mm of Optical Path Length Standard 2" Filter Thread (M48x0.75) to T-Thread (M42x0.75)...

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Original price $15.00 - Original price $15.00
Original price
$15.00
$15.00 - $15.00
Current price $15.00
Original price $39.00 - Original price $39.00
Original price
$39.00
$39.00 - $39.00
Current price $39.00

William Optics M48 Push-in Nosepiece for WO 2" Diagonals & UniGuide Scope

WO-WD-DIG2A
1 in stock

Connects M48 Threaded Accessories to 2" Push-in Focusers Female M48 Threads for 2" Filter Attachment Adds a Fixed 36 mm of Optical Length Male M48...

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Original price $39.00 - Original price $39.00
Original price
$39.00
$39.00 - $39.00
Current price $39.00
Original price $119.00 - Original price $119.00
Original price
$119.00
$119.00 - $119.00
Current price $119.00

William Optics M54 Camera Angle Rotator (CAA)

WO-M-CAA54
1 in stock

360° of precise framing rotation Standard M54 male and female threads Adds a minimal 30.2 mm to the optical path Securely locks orientation for lo...

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Original price $119.00 - Original price $119.00
Original price
$119.00
$119.00 - $119.00
Current price $119.00
Original price $48.00 - Original price $48.00
Original price
$48.00
$48.00 - $48.00
Current price $48.00

William Optics M63 Female to 2" Push-in Adapter for P-FLAT6AIII

WO-YE-M63F-2IN-PI
1 in stock

Connects P-FLAT6AIII Flattener to 2" Focuser Female M63 Threads for Flattener Connection Male 2" Push-in Barrel for Focuser Internal M48 Female Th...

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Original price $48.00 - Original price $48.00
Original price
$48.00
$48.00 - $48.00
Current price $48.00
Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00

William Optics M63(M) to M48(M) Photo Adapter

WO-P-PAM-63-48

Adds 80mm of Optical Length Connects to M63 Female Threads Outputs to M48 Male T-Threads Enables Focus Without a Field Flattener Designed for Will...

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Original price $64.00 - Original price $64.00
Original price
$64.00
$64.00 - $64.00
Current price $64.00
Original price $88.00 - Original price $88.00
Original price
$88.00
$88.00 - $88.00
Current price $88.00

William Optics M92 to M63 Adapter for William Optics FLT91

WO-YE-M92-63

Connects William Optics FLT91 Telescope to Flat6AIII Flattener Input Thread: M92 Male Output Thread: M63 Female Optical Path Length: 10.5 mm De...

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Original price $88.00 - Original price $88.00
Original price
$88.00
$88.00 - $88.00
Current price $88.00
Original price $45.00 - Original price $45.00
Original price
$45.00
$45.00 - $45.00
Current price $45.00

William Optics Micro 4/3 48mm T-Mount for Olympus - Black

WO-TM-MFT-M48
3 in stock

Connects M48 Correctors to Olympus Micro 4/3 Cameras Fixed 35.6 mm Optical Length for Precise Back Focus Light-In Connection: M48 (Female) Thread ...

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Original price $45.00 - Original price $45.00
Original price
$45.00
$45.00 - $45.00
Current price $45.00
Original price $99.00 - Original price $99.00
Original price
$99.00
$99.00 - $99.00
Current price $99.00

William Optics Mounting Ring for Z61

WO-M-R-61BL-P

Designed specifically for the William Optics ZenithStar 61 I Provides a secure, rigid mounting point for the optical tube Features an integrated C...

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Original price $99.00 - Original price $99.00
Original price
$99.00
$99.00 - $99.00
Current price $99.00
Original price $178.00 - Original price $178.00
Original price
$178.00
$178.00 - $178.00
Current price $178.00

William Optics Mounting Rings 90mm

WO-M-M80R-B

Precise 90mm Inner Diameter Solid, All-Metal Construction Secures Optical Tube for Astrophotography Requires User Measurement for Fit Confirmation...

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Original price $178.00 - Original price $178.00
Original price
$178.00
$178.00 - $178.00
Current price $178.00
Original price $30.00 - Original price $38.00
Original price
$30.00 - $38.00
$30.00 - $38.00
Current price $30.00

William Optics Pair of Riser Blocks

Options available
10 variants in stock

Provides critical clearance for cameras and filter wheels Improves balance options for complex imaging trains Designed for William Optics Universa...

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Original price $30.00 - Original price $38.00
Original price
$30.00 - $38.00
$30.00 - $38.00
Current price $30.00
Original price $79.00 - Original price $79.00
Original price
$79.00
$79.00 - $79.00
Current price $79.00

William Optics Saddle Plate for Vixen-Style Dovetail Plate - 90mm

WO-M-SP90RC-RD
1 in stock

Length: 90 mm Dovetail Type: Vixen-Style Weight: 230 g (0.51 lbs) Full-Length, Non-Marring Clamp Signature William Optics Red Anodized Finish D...

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Original price $79.00 - Original price $79.00
Original price
$79.00
$79.00 - $79.00
Current price $79.00