Skip to content
ZWO Seestar S30 Desktop
Holiday Schedule: We’ll be taking a short break from December 24th to December 29th to enjoy the holidays. During this time, the store will be closed, no orders will be shipped, and support will be unavailable. Happy Holidays!
Holiday Schedule: We’ll be taking a short break from December 24th to December 29th to enjoy the holidays. During this time, the store will be closed, no orders will be shipped, and support will be unavailable. Happy Holidays!

Parts and Accessories

Filters

  • Save 10% Save %
    CA$125.00
    CA$125.00 - CA$125.00
    CA$125.00
    CA$113.00
    CA$113.00 - CA$113.00
    CA$113.00

    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...

    View full details
    CA$125.00
    CA$125.00 - CA$125.00
    CA$125.00
    CA$113.00
    CA$113.00 - CA$113.00
    CA$113.00
    Save 10% Save %
  • Save 10% Save %
    CA$63.00
    CA$63.00 - CA$63.00
    CA$63.00
    CA$57.00
    CA$57.00 - CA$57.00
    CA$57.00

    William Optics 120mm Saddle Handle Bar

    WO-M-HC120BL
    2 in stock

    Seamlessly integrate with your existing astrophotography gear. Eliminates the need for constant adjustments. Description In the box ...

    View full details
    CA$63.00
    CA$63.00 - CA$63.00
    CA$63.00
    CA$57.00
    CA$57.00 - CA$57.00
    CA$57.00
    Save 10% Save %
  • Save 10% Save %
    CA$147.00
    CA$147.00 - CA$147.00
    CA$147.00
    CA$132.00
    CA$132.00 - CA$132.00
    CA$132.00

    William Optics 120mm Saddle Handle Bar with 50mm Guiding Rings

    WO-M-HC120BL-GR50SL

    Provide a stable platform for attaching guiding scopes and other accessories User-friendly and can be set up quickly Makes it easy to carry and...

    View full details
    CA$147.00
    CA$147.00 - CA$147.00
    CA$147.00
    CA$132.00
    CA$132.00 - CA$132.00
    CA$132.00
    Save 10% Save %
  • Save 10% Save %
    CA$140.00
    CA$140.00 - CA$140.00
    CA$140.00
    CA$126.00
    CA$126.00 - CA$126.00
    CA$126.00

    William Optics 120mm Saddle Handle Bar with 50mm Guiding Rings - No Adjustments Screws

    WO-M-HC120BL-GR50IISL

    Seamlessly integrate with your existing astrophotography gear. Eliminates the need for constant adjustments. Description In the box ...

    View full details
    CA$140.00
    CA$140.00 - CA$140.00
    CA$140.00
    CA$126.00
    CA$126.00 - CA$126.00
    CA$126.00
    Save 10% Save %
  • Save 10% Save %
    CA$127.00
    CA$127.00 - CA$127.00
    CA$127.00
    CA$114.00
    CA$114.00 - CA$114.00
    CA$114.00

    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 ...

    View full details
    CA$127.00
    CA$127.00 - CA$127.00
    CA$127.00
    CA$114.00
    CA$114.00 - CA$114.00
    CA$114.00
    Save 10% Save %
  • Save 10% Save %
    CA$143.00
    CA$143.00 - CA$143.00
    CA$143.00
    CA$129.00
    CA$129.00 - CA$129.00
    CA$129.00

    William Optics 2" RotoLock Adapter - SCT

    WO-D-ROTO-A2-SCT2F

    Designed for Schmidt-Cassegrain Telescopes (SCT) Features a secure RotoLock mechanism for 2" accessories Description The Willi...

    View full details
    CA$143.00
    CA$143.00 - CA$143.00
    CA$143.00
    CA$129.00
    CA$129.00 - CA$129.00
    CA$129.00
    Save 10% Save %
  • Save 11% Save %
    CA$76.00
    CA$76.00 - CA$76.00
    CA$76.00
    CA$68.00
    CA$68.00 - CA$68.00
    CA$68.00

    William Optics 2"-1.25" RotoLock Visual Back Adapter

    Options available

    2" to 1.25" RotoLock visual back adapter for secure accessory attachment Ensures a stable and precise connection fo...

    View full details
    CA$76.00
    CA$76.00 - CA$76.00
    CA$76.00
    CA$68.00
    CA$68.00 - CA$68.00
    CA$68.00
    Save 11% Save %
  • Save 10% Save %
    CA$130.00
    CA$130.00 - CA$130.00
    CA$130.00
    CA$117.00
    CA$117.00 - CA$117.00
    CA$117.00

    William Optics 243mm Saddle Handle Bar

    WO-M-HC243BL

    Provide a stable platform for attaching guiding scopes and other accessories User-friendly and can be set up quickly Makes it easy to carry and ma...

    View full details
    CA$130.00
    CA$130.00 - CA$130.00
    CA$130.00
    CA$117.00
    CA$117.00 - CA$117.00
    CA$117.00
    Save 10% Save %
  • Save 10% Save %
    CA$203.00
    CA$203.00 - CA$203.00
    CA$203.00
    CA$183.00
    CA$183.00 - CA$183.00
    CA$183.00

    William Optics 243mm Saddle Handle Bar with 50mm Guiding Rings

    WO-M-HC243BL-GR50IISL

    Compatible with William Optics' slide-base guide rings Can be used to make William Optics telescopes portable Description The Wil...

    View full details
    CA$203.00
    CA$203.00 - CA$203.00
    CA$203.00
    CA$183.00
    CA$183.00 - CA$183.00
    CA$183.00
    Save 10% Save %
  • Save 10% Save %
    CA$279.00
    CA$279.00 - CA$279.00
    CA$279.00
    CA$251.00
    CA$251.00 - CA$251.00
    CA$251.00

    William Optics 3.5"-2" RotoLock Visual Back Adapter

    Options available

    3.5" to 2" RotoLock visual back adapter for secure accessory attachment Ensures a stable and precise connection for...

    View full details
    CA$279.00
    CA$279.00 - CA$279.00
    CA$279.00
    CA$251.00
    CA$251.00 - CA$251.00
    CA$251.00
    Save 10% Save %
  • Save 10% Save %
    CA$92.00
    CA$92.00 - CA$92.00
    CA$92.00
    CA$83.00
    CA$83.00 - CA$83.00
    CA$83.00

    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 ...

    View full details
    CA$92.00
    CA$92.00 - CA$92.00
    CA$92.00
    CA$83.00
    CA$83.00 - CA$83.00
    CA$83.00
    Save 10% Save %
  • Save 10% Save %
    CA$49.00
    CA$49.00 - CA$49.00
    CA$49.00
    CA$44.00
    CA$44.00 - CA$44.00
    CA$44.00

    William Optics 48mm T-Mount for Canon

    WO-TM-CN-EOS-M48
    6 in stock

    Allows for simple installation Made with improved CNC for greater rigidity Description Compatible with Canon EOS-R mount mirrorless cameras....

    View full details
    CA$49.00
    CA$49.00 - CA$49.00
    CA$49.00
    CA$44.00
    CA$44.00 - CA$44.00
    CA$44.00
    Save 10% Save %
  • Save 10% Save %
    CA$81.00
    CA$81.00 - CA$81.00
    CA$81.00
    CA$73.00
    CA$73.00 - CA$73.00
    CA$73.00

    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 ...

    View full details
    CA$81.00
    CA$81.00 - CA$81.00
    CA$81.00
    CA$73.00
    CA$73.00 - CA$73.00
    CA$73.00
    Save 10% Save %
  • Save 9% Save %
    CA$65.00
    CA$65.00 - CA$65.00
    CA$65.00
    CA$59.00
    CA$59.00 - CA$59.00
    CA$59.00

    William Optics 48mm T-Mount for Fuji FX - Black

    WO-TM-FJ-X-M48

    High-precision M48 T-Mount Adapter For Fuji FX series cameras Description The William Optics 48mm T-Mount for Pentax K is a high-...

    View full details
    CA$65.00
    CA$65.00 - CA$65.00
    CA$65.00
    CA$59.00
    CA$59.00 - CA$59.00
    CA$59.00
    Save 9% Save %
  • Save 10% Save %
    CA$49.00
    CA$49.00 - CA$49.00
    CA$49.00
    CA$44.00
    CA$44.00 - CA$44.00
    CA$44.00

    William Optics 48mm T-Mount for Nikon F

    WO-TM-NK-F-M48

    48mm T-Mount designed for Nikon F-mount cameras Ensures a secure and precise connection between your camera and tel...

    View full details
    CA$49.00
    CA$49.00 - CA$49.00
    CA$49.00
    CA$44.00
    CA$44.00 - CA$44.00
    CA$44.00
    Save 10% Save %
  • Save 10% Save %
    CA$81.00
    CA$81.00 - CA$81.00
    CA$81.00
    CA$73.00
    CA$73.00 - CA$73.00
    CA$73.00

    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 ...

    View full details
    CA$81.00
    CA$81.00 - CA$81.00
    CA$81.00
    CA$73.00
    CA$73.00 - CA$73.00
    CA$73.00
    Save 10% Save %
  • Save 10% Save %
    CA$49.00
    CA$49.00 - CA$49.00
    CA$49.00
    CA$44.00
    CA$44.00 - CA$44.00
    CA$44.00

    William Optics 48mm T-Mount for Pentax K - Black

    WO-TM-PT-K-M48
    1 in stock

    High-precision M48 T-Mount Adapter For Pentax K series cameras Description The William Optics 48mm T-Mount for Pentax K is a high...

    View full details
    CA$49.00
    CA$49.00 - CA$49.00
    CA$49.00
    CA$44.00
    CA$44.00 - CA$44.00
    CA$44.00
    Save 10% Save %
  • Save 9% Save %
    CA$65.00
    CA$65.00 - CA$65.00
    CA$65.00
    CA$59.00
    CA$59.00 - CA$59.00
    CA$59.00

    William Optics 48mm T-Mount for Sony E - Black

    WO-TM-SN-E-M48

    48mm T-Mount designed specifically for Sony E-mount cameras Allows seamless connection between your Sony E-mount ca...

    View full details
    CA$65.00
    CA$65.00 - CA$65.00
    CA$65.00
    CA$59.00
    CA$59.00 - CA$59.00
    CA$59.00
    Save 9% Save %
  • Save 10% Save %
    CA$84.00
    CA$84.00 - CA$84.00
    CA$84.00
    CA$76.00
    CA$76.00 - CA$76.00
    CA$76.00

    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...

    View full details
    CA$84.00
    CA$84.00 - CA$84.00
    CA$84.00
    CA$76.00
    CA$76.00 - CA$76.00
    CA$76.00
    Save 10% Save %
  • Save 10% Save %
    CA$242.00
    CA$242.00 - CA$242.00
    CA$242.00
    CA$218.00
    CA$218.00 - CA$218.00
    CA$218.00

    William Optics 98/102/103/110 Soft Case

    WO-BG1-P001

    Soft carry case designed specifically for William Optics 98mm, 102mm, 103mm, and 110mm telescopes Offers protection...

    View full details
    CA$242.00
    CA$242.00 - CA$242.00
    CA$242.00
    CA$218.00
    CA$218.00 - CA$218.00
    CA$218.00
    Save 10% Save %
  • Save 10% Save %
    CA$157.00
    CA$157.00 - CA$157.00
    CA$157.00
    CA$141.00
    CA$141.00 - CA$141.00
    CA$141.00

    William Optics Camera Angle Rotator for 2.5" M63 Focuser

    WO-M-CAA63
    2 in stock

    Camera angle rotator designed for William Optics 2.5" M63 focuser Allows precise adjustment of the camera angle for...

    View full details
    CA$157.00
    CA$157.00 - CA$157.00
    CA$157.00
    CA$141.00
    CA$141.00 - CA$141.00
    CA$141.00
    Save 10% Save %
  • Save 10% Save %
    CA$92.00
    CA$92.00 - CA$92.00
    CA$92.00
    CA$83.00
    CA$83.00 - CA$83.00
    CA$83.00

    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 ...

    View full details
    CA$92.00
    CA$92.00 - CA$92.00
    CA$92.00
    CA$83.00
    CA$83.00 - CA$83.00
    CA$83.00
    Save 10% Save %
  • Save 10% Save %
    CA$300.00
    CA$300.00 - CA$300.00
    CA$300.00
    CA$270.00
    CA$270.00 - CA$270.00
    CA$270.00

    William Optics Carry Soft Case for FLT132

    WO-BG1-P005

    Soft carry case designed specifically for the William Optics FLT132 telescope Offers protection and convenience for...

    View full details
    CA$300.00
    CA$300.00 - CA$300.00
    CA$300.00
    CA$270.00
    CA$270.00 - CA$270.00
    CA$270.00
    Save 10% Save %
  • Save 10% Save %
    CA$62.00
    CA$62.00 - CA$62.00
    CA$62.00
    CA$56.00
    CA$56.00 - CA$56.00
    CA$56.00

    William Optics Cat Mounting Ring

    WO-M-MR50RC-BL

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

    View full details
    CA$62.00
    CA$62.00 - CA$62.00
    CA$62.00
    CA$56.00
    CA$56.00 - CA$56.00
    CA$56.00
    Save 10% Save %