Focusing Masks
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Original price $56.00 USDOriginal price $56.00 USD - Original price $56.00 USDOriginal price $56.00 USDCurrent price $50.00 USD$50.00 USD - $50.00 USDCurrent price $50.00 USD
William Optics 105 -148mm Bahtinov Focusing Mask
WO-BM-DS-GR55Designed for telescopes with apertures between 105mm and 148mm Precise focusing aid for astrophotography and visual observation Descri...
View full detailsOriginal price $56.00 USDOriginal price $56.00 USD - Original price $56.00 USDOriginal price $56.00 USDCurrent price $50.00 USD$50.00 USD - $50.00 USDCurrent price $50.00 USDSave 11% -
Original price $79.00 USDOriginal price $79.00 USD - Original price $79.00 USDOriginal price $79.00 USDCurrent price $71.00 USD$71.00 USD - $71.00 USDCurrent price $71.00 USD
William Optics 172mm -235mm Bahtinov Focusing Mask
WO-BM-DS-GR90Designed for telescopes with apertures between 172mm and 235mm Precise focusing aid for astrophotography and visual observation Descri...
View full detailsOriginal price $79.00 USDOriginal price $79.00 USD - Original price $79.00 USDOriginal price $79.00 USDCurrent price $71.00 USD$71.00 USD - $71.00 USDCurrent price $71.00 USDSave 10% -
Original price $90.00 USDOriginal price $90.00 USD - Original price $90.00 USDOriginal price $90.00 USDCurrent price $81.00 USD$81.00 USD - $81.00 USDCurrent price $81.00 USD
William Optics 243-308mm Bahtinov Focusing Mask
WO-BM-DS-GR1501 in stockDesigned for telescopes with apertures between 243mm and 308mm Precise focusing aid for large aperture telescopes and astrophotography ...
View full detailsOriginal price $90.00 USDOriginal price $90.00 USD - Original price $90.00 USDOriginal price $90.00 USDCurrent price $81.00 USD$81.00 USD - $81.00 USDCurrent price $81.00 USDSave 10% -
Original price $49.00 USDOriginal price $49.00 USD - Original price $49.00 USDOriginal price $49.00 USDCurrent price $44.00 USD$44.00 USD - $44.00 USDCurrent price $44.00 USD
William Optics 75mm -110mm Bahtinov Focusing Mask
WO-BM-DS-GR45Precise focusing aid for telescopes with apertures between 75mm and 110mm Adjustable design to fit various telescope sizes within the specif...
View full detailsOriginal price $49.00 USDOriginal price $49.00 USD - Original price $49.00 USDOriginal price $49.00 USDCurrent price $44.00 USD$44.00 USD - $44.00 USDCurrent price $44.00 USDSave 10% -
Original price $102.00 USDOriginal price $102.00 USD - Original price $102.00 USDOriginal price $102.00 USDCurrent price $92.00 USD$92.00 USD - $92.00 USDCurrent price $92.00 USD
William Optics Bahtinov Mask Cover for GT71 / Z73 / Star71II
Options availableBahtinov mask cover for William Optics GT71, Z73, and Star71II telescopes Enhances focusing accuracy for astrophotography Description ...
View full detailsOriginal price $102.00 USDOriginal price $102.00 USD - Original price $102.00 USDOriginal price $102.00 USDCurrent price $92.00 USD$92.00 USD - $92.00 USDCurrent price $92.00 USDSave 10% -
Original price $113.00 USDOriginal price $113.00 USD - Original price $113.00 USDOriginal price $113.00 USDCurrent price $102.00 USD$102.00 USD - $102.00 USDCurrent price $102.00 USD
William Optics Bahtinov Mask Cover for GT81 / Z81
Options availableBahtinov mask cover for William Optics GT81 and Z81 telescopes Enhances focusing accuracy for astrophotography Description The Willi...
View full detailsOriginal price $113.00 USDOriginal price $113.00 USD - Original price $113.00 USDOriginal price $113.00 USDCurrent price $102.00 USD$102.00 USD - $102.00 USDCurrent price $102.00 USDSave 10% -
Original price $185.00 USDOriginal price $185.00 USD - Original price $185.00 USDOriginal price $185.00 USDCurrent price $167.00 USD$167.00 USD - $167.00 USDCurrent price $167.00 USD
William Optics Bahtinov Mask Cover for Takahashi FSQ106
Options availableBahtinov mask cover for Takahashi FSQ106 telescope Enhances focusing accuracy for astrophotography Description The William Optics Ba...
View full detailsOriginal price $185.00 USDOriginal price $185.00 USD - Original price $185.00 USDOriginal price $185.00 USDCurrent price $167.00 USD$167.00 USD - $167.00 USDCurrent price $167.00 USDSave 10% -
Original price $137.00 USDOriginal price $137.00 USD - Original price $137.00 USDOriginal price $137.00 USDCurrent price $123.00 USD$123.00 USD - $123.00 USDCurrent price $123.00 USD
William Optics Bahtinov Mask Cover for WO 102 & 103 Series Telescopes
Options availableBahtinov mask cover for William Optics 102 & 103 Series telescopes Enhances focusing accuracy for astrophotography Description T...
View full detailsOriginal price $137.00 USDOriginal price $137.00 USD - Original price $137.00 USDOriginal price $137.00 USDCurrent price $123.00 USD$123.00 USD - $123.00 USDCurrent price $123.00 USDSave 10% -
Original price $196.00 USDOriginal price $196.00 USD - Original price $196.00 USDOriginal price $196.00 USDCurrent price $176.00 USD$176.00 USD - $176.00 USDCurrent price $176.00 USD
William Optics Bahtinov Mask Cover for WO FLT132
Options availablePrecision focusing aid for the William Optics FLT132 telescope Custom-designed to fit the FLT132 model perfectly Description T...
View full detailsOriginal price $196.00 USDOriginal price $196.00 USD - Original price $196.00 USDOriginal price $196.00 USDCurrent price $176.00 USD$176.00 USD - $176.00 USDCurrent price $176.00 USDSave 10% -
Original price $90.00 USDOriginal price $90.00 USD - Original price $90.00 USDOriginal price $90.00 USDCurrent price $81.00 USD$81.00 USD - $81.00 USDCurrent price $81.00 USD
William Optics Bahtinov Mask Cover for WO Z61
Options availablePrecision focusing aid for the William Optics Z61 telescope Custom-designed to fit the Z61 model perfectly Description The Wil...
View full detailsOriginal price $90.00 USDOriginal price $90.00 USD - Original price $90.00 USDOriginal price $90.00 USDCurrent price $81.00 USD$81.00 USD - $81.00 USDCurrent price $81.00 USDSave 10%
