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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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William Optics

William Optics

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  • Original price $90.00 USD - Original price $90.00 USD
    Original price
    $90.00 USD
    $90.00 USD - $90.00 USD
    Current price $90.00 USD

    William Optics 243-308mm Bahtinov Focusing Mask

    WO-BM-DS-GR150
    1 in stock

    Designed for telescopes with apertures between 243mm and 308mm Precise focusing aid for large aperture telescopes and astrophotography ...

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    Original price $90.00 USD - Original price $90.00 USD
    Original price
    $90.00 USD
    $90.00 USD - $90.00 USD
    Current price $90.00 USD
  • Original price $88.00 USD - Original price $88.00 USD
    Original price
    $88.00 USD
    $88.00 USD - $88.00 USD
    Current price $88.00 USD

    William Optics 2" RotoLock - M63

    WO-F-ROTO-A63SL

    2" RotoLock adapter designed for M63 threads Ensures a secure and precise connection for 2" accessories ...

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    Original price $88.00 USD - Original price $88.00 USD
    Original price
    $88.00 USD
    $88.00 USD - $88.00 USD
    Current price $88.00 USD
  • Original price $87.00 USD - Original price $87.00 USD
    Original price
    $87.00 USD
    $87.00 USD - $87.00 USD
    Current price $87.00 USD

    William Optics 1.25" RotoLock Visual Back Adapter - SCT

    WO-F-ROTO-A2-125-SCT-TA

    1.25" RotoLock visual back adapter designed for SCT threads Ensures a secure and precise connection for 1.25" acces...

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    Original price $87.00 USD - Original price $87.00 USD
    Original price
    $87.00 USD
    $87.00 USD - $87.00 USD
    Current price $87.00 USD
  • Original price $87.00 USD - Original price $87.00 USD
    Original price
    $87.00 USD
    $87.00 USD - $87.00 USD
    Current price $87.00 USD

    William Optics SWAN 72° 9mm Eyepiece - 1.25"

    WO-E-SWA09

    1.25-inch eyepiece with 72° apparent field of view 9mm focal length for high-magnification, wide-field viewing Description The...

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    Original price $87.00 USD - Original price $87.00 USD
    Original price
    $87.00 USD
    $87.00 USD - $87.00 USD
    Current price $87.00 USD
  • Original price $85.00 USD - Original price $85.00 USD
    Original price
    $85.00 USD
    $85.00 USD - $85.00 USD
    Current price $85.00 USD

    William Optics Red Dot Finder Kit with Vixen Style Mounting Base

    WO-M-RDF-P-VB
    11 in stock

    Red dot finder for easy target acquisition Includes Vixen-style mounting base for versatile attachment Description The William...

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    Original price $85.00 USD - Original price $85.00 USD
    Original price
    $85.00 USD
    $85.00 USD - $85.00 USD
    Current price $85.00 USD
  • Original price $80.00 USD - Original price $80.00 USD
    Original price
    $80.00 USD
    $80.00 USD - $80.00 USD
    Current price $80.00 USD

    William Optics Vixen Style Finder Mounting Bracket for RedCat - Black Base

    WO-M-FB50-RC-BB

    Seamlessly integrate with your existing astrophotography gear. Ensures stable attachment of your telescope to your mount. Description In th...

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    Original price $80.00 USD - Original price $80.00 USD
    Original price
    $80.00 USD
    $80.00 USD - $80.00 USD
    Current price $80.00 USD
  • Original price $79.00 USD - Original price $79.00 USD
    Original price
    $79.00 USD
    $79.00 USD - $79.00 USD
    Current price $79.00 USD

    William Optics 172mm -235mm Bahtinov Focusing Mask

    WO-BM-DS-GR90

    Designed for telescopes with apertures between 172mm and 235mm Precise focusing aid for astrophotography and visual observation Descri...

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    Original price $79.00 USD - Original price $79.00 USD
    Original price
    $79.00 USD
    $79.00 USD - $79.00 USD
    Current price $79.00 USD
  • Original price $76.00 USD - Original price $76.00 USD
    Original price
    $76.00 USD
    $76.00 USD - $76.00 USD
    Current price $76.00 USD

    William Optics ZenithStar V1 Upgrade Mounting Ring

    Options available

    Allows for simple installation Made with improved CNC for greater rigidity Description The William Optics ZenithStar V1 Upgrade Mounting Rin...

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    Original price $76.00 USD - Original price $76.00 USD
    Original price
    $76.00 USD
    $76.00 USD - $76.00 USD
    Current price $76.00 USD
  • Original price $67.00 USD - Original price $67.00 USD
    Original price
    $67.00 USD
    $67.00 USD - $67.00 USD
    Current price $67.00 USD

    William Optics Birding 250mm Duelside Plate (Manfrotto & Arca Swiss Type) - DISCONTINUED

    WO-M-PMA250

    Work with Vixen-style dovetail bars Made of durable materials Description The William Optics Birding 250mm Duelside Plate is an acces...

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    Original price $67.00 USD - Original price $67.00 USD
    Original price
    $67.00 USD
    $67.00 USD - $67.00 USD
    Current price $67.00 USD
    Sold out
  • Original price $66.00 USD - Original price $66.00 USD
    Original price
    $66.00 USD
    $66.00 USD - $66.00 USD
    Current price $66.00 USD

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

    WO-M-SP90RC-RD
    2 in stock

    Precision-machined from high-grade aluminum for a perfect fit Description The William Optics Saddle Plate for Vixen-Style Dovetail Plate - 9...

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    Original price $66.00 USD - Original price $66.00 USD
    Original price
    $66.00 USD
    $66.00 USD - $66.00 USD
    Current price $66.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics Slide-Base 50mm Guiding Rings

    WO-M-GR50SL
    1 in stock

    Seamlessly integrate with your existing astrophotography gear. Ensures stable attachment of your telescope to your mount. Description In the bo...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics Slide-Base 50mm Guiding Rings - No Adjustments Screws

    WO-M-GR50IISL

    Seamlessly integrate with your existing astrophotography gear. Ensures stable attachment of your telescope to your mount. Description In th...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics Vixen Style Finder Mounting Bracket

    WO-M-FB50-B
    2 in stock

    Seamlessly integrate with your existing astrophotography gear. Ensures stable attachment of your telescope to your mount. Description In th...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

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

    WO-P-PAM-63-48
    1 in stock

    M63 male to M48 male photo adapter for versatile connection options Facilitates seamless integration between M63 an...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics 4" Extension Tube for FLT Series

    WO-P-EXFLT

    4" extension tube designed for William Optics FLT Series Provides additional back focus for various optical setups ...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics Canon EOS Camera Adapter

    WO-AD4-A009-L00BL03

    Allows attachment of Canon EOS cameras to William Optics telescopes Ensures a secure and stable connection for astrophotography Description ...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

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

    WO-AD4-A006-L00GD03

    Designed for William Optics FLT telescopes (2007-2016 models) Gold-colored finish for aesthetic appeal Description The William...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

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

    WO-AD4-A006-L00BU03

    Designed for William Optics GT102 and FLT 132 telescopes with 3" V-power Focuser Blue-colored finish for aesthetic appeal Description ...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

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

    WO-AD4-A006-L00BL03

    Designed for William Optics GT102 and FLT 132 telescopes with 3" V-Power Focuser Black-colored finish for a sleek, professional look D...

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $59.00 USD - Original price $59.00 USD
    Original price
    $59.00 USD
    $59.00 USD - $59.00 USD
    Current price $59.00 USD

    William Optics Soft Carry Case for Z71 / Z73 / Star71 / GT71

    WO-BG1-P004

    Soft carry case designed specifically for William Optics Z71, Z73, Star71, and GT71 telescopes Offers protection an...

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    Original price $59.00 USD - Original price $59.00 USD
    Original price
    $59.00 USD
    $59.00 USD - $59.00 USD
    Current price $59.00 USD
  • Original price $58.00 USD - Original price $58.00 USD
    Original price
    $58.00 USD
    $58.00 USD - $58.00 USD
    Current price $58.00 USD

    William Optics 81mm Carry Soft Case

    WO-BG1-P002

    Soft carry case designed specifically for 81mm William Optics telescopes Offers protection and convenience for tran...

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    Original price $58.00 USD - Original price $58.00 USD
    Original price
    $58.00 USD
    $58.00 USD - $58.00 USD
    Current price $58.00 USD
  • Original price $56.00 USD - Original price $56.00 USD
    Original price
    $56.00 USD
    $56.00 USD - $56.00 USD
    Current price $56.00 USD

    William Optics 48mm T-Mount for Canon EOS R Mirrorless

    WO-TM-CN-EOSR-M48
    3 in stock

    High-precision M48 T-Mount Adapter For Canon EOS R mirrorless DSLR cameras Description The William Optics 48mm T-Mount for Canon ...

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    Original price $56.00 USD - Original price $56.00 USD
    Original price
    $56.00 USD
    $56.00 USD - $56.00 USD
    Current price $56.00 USD
  • Original price $56.00 USD - Original price $56.00 USD
    Original price
    $56.00 USD
    $56.00 USD - $56.00 USD
    Current price $56.00 USD

    William Optics 48mm T-Mount for Nikon Z

    WO-TM-NK-Z-M48
    1 in stock

    High-precision M48 T-Mount Adapter For Canon EOS R mirrorless DSLR cameras Description The William Optics 48mm T-Mount for Canon ...

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    Original price $56.00 USD - Original price $56.00 USD
    Original price
    $56.00 USD
    $56.00 USD - $56.00 USD
    Current price $56.00 USD
  • Original price $56.00 USD - Original price $56.00 USD
    Original price
    $56.00 USD
    $56.00 USD - $56.00 USD
    Current price $56.00 USD

    William Optics 105 -148mm Bahtinov Focusing Mask

    WO-BM-DS-GR55

    Designed for telescopes with apertures between 105mm and 148mm Precise focusing aid for astrophotography and visual observation Descri...

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    Original price $56.00 USD - Original price $56.00 USD
    Original price
    $56.00 USD
    $56.00 USD - $56.00 USD
    Current price $56.00 USD