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Focusing Masks

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  • CA$81.00 - CA$81.00
    CA$81.00
    CA$81.00 - CA$81.00
    CA$81.00

    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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    CA$81.00 - CA$81.00
    CA$81.00
    CA$81.00 - CA$81.00
    CA$81.00
  • CA$114.00 - CA$114.00
    CA$114.00
    CA$114.00 - CA$114.00
    CA$114.00

    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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    CA$114.00 - CA$114.00
    CA$114.00
    CA$114.00 - CA$114.00
    CA$114.00
  • CA$130.00 - CA$130.00
    CA$130.00
    CA$130.00 - CA$130.00
    CA$130.00

    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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    CA$130.00 - CA$130.00
    CA$130.00
    CA$130.00 - CA$130.00
    CA$130.00
  • CA$71.00 - CA$71.00
    CA$71.00
    CA$71.00 - CA$71.00
    CA$71.00

    William Optics 75mm -110mm Bahtinov Focusing Mask

    WO-BM-DS-GR45

    Precise focusing aid for telescopes with apertures between 75mm and 110mm Adjustable design to fit various telescope sizes within the specif...

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    CA$71.00 - CA$71.00
    CA$71.00
    CA$71.00 - CA$71.00
    CA$71.00
  • CA$147.00 - CA$147.00
    CA$147.00
    CA$147.00 - CA$147.00
    CA$147.00

    William Optics Bahtinov Mask Cover for GT71 / Z73 / Star71II

    Options available

    Bahtinov mask cover for William Optics GT71, Z73, and Star71II telescopes Enhances focusing accuracy for astrophotography Description ...

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    CA$147.00 - CA$147.00
    CA$147.00
    CA$147.00 - CA$147.00
    CA$147.00
  • CA$163.00 - CA$163.00
    CA$163.00
    CA$163.00 - CA$163.00
    CA$163.00

    William Optics Bahtinov Mask Cover for GT81 / Z81

    Options available

    Bahtinov mask cover for William Optics GT81 and Z81 telescopes Enhances focusing accuracy for astrophotography Description The Willi...

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    CA$163.00 - CA$163.00
    CA$163.00
    CA$163.00 - CA$163.00
    CA$163.00
  • CA$266.00 - CA$266.00
    CA$266.00
    CA$266.00 - CA$266.00
    CA$266.00

    William Optics Bahtinov Mask Cover for Takahashi FSQ106

    Options available

    Bahtinov mask cover for Takahashi FSQ106 telescope Enhances focusing accuracy for astrophotography Description The William Optics Ba...

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    CA$266.00 - CA$266.00
    CA$266.00
    CA$266.00 - CA$266.00
    CA$266.00
  • CA$197.00 - CA$197.00
    CA$197.00
    CA$197.00 - CA$197.00
    CA$197.00

    William Optics Bahtinov Mask Cover for WO 102 & 103 Series Telescopes

    Options available

    Bahtinov mask cover for William Optics 102 & 103 Series telescopes Enhances focusing accuracy for astrophotography Description T...

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    CA$197.00 - CA$197.00
    CA$197.00
    CA$197.00 - CA$197.00
    CA$197.00
  • CA$282.00 - CA$282.00
    CA$282.00
    CA$282.00 - CA$282.00
    CA$282.00

    William Optics Bahtinov Mask Cover for WO FLT132

    Options available

    Precision focusing aid for the William Optics FLT132 telescope Custom-designed to fit the FLT132 model perfectly Description T...

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    CA$282.00 - CA$282.00
    CA$282.00
    CA$282.00 - CA$282.00
    CA$282.00
  • CA$130.00 - CA$130.00
    CA$130.00
    CA$130.00 - CA$130.00
    CA$130.00

    William Optics Bahtinov Mask Cover for WO Z61

    Options available

    Precision focusing aid for the William Optics Z61 telescope Custom-designed to fit the Z61 model perfectly Description The Wil...

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    CA$130.00 - CA$130.00
    CA$130.00
    CA$130.00 - CA$130.00
    CA$130.00