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William Optics

Items 51 - 75 of 184

William Optics Bahtinov Mask Cover for WO GT81 Telescopes - Red - CPBM-81RD

SKU: WYO-CPBM-81-RD
  • Focus Masks & Caps Known to Fit: William Optics GT81 Telescopes
$98.00

William Optics Bahtinov Mask Cover for WO GT81 Telescopes - Gold - CPBM-81GD

SKU: WYO-CPBM-81-GD
  • Focus Masks & Caps Known to Fit: William Optics GT81 Telescopes
$98.00

William Optics Bahtinov Mask Cover for WO 102 & 103 Series Telescopes - Blue - CPBM-102BU

SKU: WYO-CPBM-102-BU
  • Focus Masks & Caps Known to Fit: William Optics 102 & 103 Series Telescopes
$118.00

William Optics Bahtinov Mask Cover for WO 102 & 103 Series Telescopes - Red - CPBM-102RD

SKU: WYO-CPBM-102-RD
  • Focus Masks & Caps Known to Fit: William Optics 102 & 103 Series Telescopes
$118.00

William Optics Bahtinov Mask Cover for WO 102 & 103 Series Telescopes - Gold - CPBM-102GD

SKU: WYO-CPBM-102-GD
  • Focus Masks & Caps Known to Fit: William Optics 102 & 103 Series Telescopes
$118.00

William Optics Bahtinov Mask Cover for WO FLT132 Telescopes - Blue - CPBM-132BU

SKU: WYO-CPBM-132-BU
  • Focus Masks & Caps Known to Fit: William Optics FLT132 Telescopes
$178.00

William Optics Bahtinov Mask Cover for WO FLT132 Telescopes - Red - CPBM-132RD

SKU: WYO-CPBM-132-RD
  • Focus Masks & Caps Known to Fit: William Optics FLT132 Telescopes
$178.00

William Optics Bahtinov Mask Cover for WO FLT132 Telescopes - Gold - CPBM-132GD

SKU: WYO-CPBM-132-GD
  • Focus Masks & Caps Known to Fit: William Optics FLT132 Telescopes
$178.00

William Optics High Latitude Vixen Base Mount & Red Extension Bar for SkyGuider Pro - Blue - YG-IO-SG01H-P-BU

SKU: WYO-YG-IO-SG01-P-H-BU
  • William Optics Vixen-Style Base Mount with Counterweight Extension Bar is High Latitude for adjusting from approximately 32 to 59 degrees.
  • Specifically designed for William Optics RedCat and WhiteCat refractor telescopes.
  • Compatible with the iOptron SkyGuider Pro Mount, this William Optics Base Mount enhances both the performance and outward attractiveness of your telescope system.
  • Made using 100% precision CNC-machined construction, the William Optics Vixen-Style Base Mount improves adjustments while providing better stability.
$198.00

William Optics High Latitude Vixen Base Mount & Red Extension Bar for SkyGuider Pro - Red - YG-IO-SG01H-P-RD

SKU: WYO-YG-IO-SG01-P-H-RD
  • William Optics Vixen-Style Base Mount with Counterweight Extension Bar is High Latitude for adjusting from approximately 32 to 59 degrees.
  • Specifically designed for William Optics RedCat and WhiteCat refractor telescopes.
  • Compatible with the iOptron SkyGuider Pro Mount, this William Optics Base Mount enhances both the performance and outward attractiveness of your telescope system.
  • Made using 100% precision CNC-machined construction, the William Optics Vixen-Style Base Mount improves adjustments while providing better stability.
$198.00

William Optics Low Latitude Vixen Base Mount & Red Extension Bar for SkyGuider Pro - Blue - YG-IO-SG01L-P-BU

SKU: WYO-YG-IO-SG01-P-L-BU
  • William Optics Vixen-Style Base Mount with Counterweight Extension Bar is Low Latitude for adjusting from approximately 7 to 34 degrees.
  • Specifically designed for William Optics RedCat and WhiteCat refractor telescopes.
  • Compatible with the iOptron SkyGuider Pro Mount, this William Optics Base Mount enhances both the performance and outward attractiveness of your telescope system.
  • Made using 100% precision CNC-machined construction, the William Optics Vixen-Style Base Mount improves adjustments while providing better stability.
$198.00

William Optics Low Latitude Vixen Base Mount & Red Extension Bar for SkyGuider Pro - Red - YG-IO-SG01L-P-RD

SKU: WYO-YG-IO-SG01-P-L-RD
  • William Optics Vixen-Style Base Mount with Counterweight Extension Bar is Low Latitude for adjusting from approximately 7 to 34 degrees.
  • Specifically designed for William Optics RedCat and WhiteCat refractor telescopes.
  • Compatible with the iOptron SkyGuider Pro Mount, this William Optics Base Mount enhances both the performance and outward attractiveness of your telescope system.
  • Made using 100% precision CNC-machined construction, the William Optics Vixen-Style Base Mount improves adjustments while providing better stability.
$198.00

William Optics Low Latitude Vixen Base Mount & Red Extension Bar for SkyGuider Pro - Gold - YG-IO-SG01L-P-GD

SKU: WYO-YG-IO-SG01-P-L-GD
  • William Optics Vixen-Style Base Mount with Counterweight Extension Bar is Low Latitude for adjusting from approximately 7 to 34 degrees.
  • Specifically designed for William Optics RedCat and WhiteCat refractor telescopes.
  • Compatible with the iOptron SkyGuider Pro Mount, this William Optics Base Mount enhances both the performance and outward attractiveness of your telescope system.
  • Made using 100% precision CNC-machined construction, the William Optics Vixen-Style Base Mount improves adjustments while providing better stability.
$198.00

William Optics DSD 245 - 9.65" Dual Sided Dovetail Plate - Gold - M-PRC245GD

SKU: WYO-M-PRC245-GD
  • Type of Mounting Hardware: Dovetails Only
  • Dovetail or Attachment Type: V-Series/Arca Swiss
  • Dovetail, Saddle or Mount Adapter Length: 9.65"
$43.00

William Optics DSD 245 - 9.65" Dual Sided Dovetail Plate - Red - M-PRC245RD

SKU: WYO-M-PRC245-RD
  • Type of Mounting Hardware: Dovetails Only
  • Dovetail or Attachment Type: V-Series/Arca Swiss
  • Dovetail, Saddle or Mount Adapter Length: 9.65"
$43.00

William Optics DSD 210 - 8.27" Dual Sided Dovetail Plate - Gold - M-PRC210GD

SKU: WYO-M-PRC210-GD
  • Type of Mounting Hardware: Dovetails Only
  • Dovetail or Attachment Type: V-Series/Arca Swiss
  • Dovetail, Saddle or Mount Adapter Length: 8.27"
$39.00

William Optics DSD 210 - 8.27" Dual Sided Dovetail Plate - Red - M-PRC210RD

SKU: WYO-M-PRC210-RD
  • Type of Mounting Hardware: Dovetails Only
  • Dovetail or Attachment Type: V-Series/Arca Swiss
  • Dovetail, Saddle or Mount Adapter Length: 8.27"
$39.00

William Optics 50mm Erecting Finder Scope - Gold - M-F50IIGD

SKU: WYO-M-F50II-GD
  • Optical Aperture: 50 mm
  • Finder or Guidescope Magnification: Variable
$158.00

William Optics 50mm Erecting Finder Scope - Red - M-F50IIRD

SKU: WYO-M-F50II-RD
  • Optical Aperture: 50 mm
  • Finder or Guidescope Magnification: Variable
$158.00

William Optics 48mm T-Mount for Pentax K - Space Gray - YE-TR-M48KTG

SKU: WYO-YE-TR-M48K-TG
  • DSLR, SLR or Mirrorless Adapters by Brand: Pentax
  • Threads: 48 mm T-Mount
  • Construction Material: CNC-machined Aluminum
$25.00

William Optics 48mm T-Mount for Pentax K - Red - YE-TR-M48KRD

SKU: WYO-YE-TR-M48K-RD
  • DSLR, SLR or Mirrorless Adapters by Brand: Pentax
  • Threads: 48 mm T-Mount
  • Construction Material: CNC-machined Aluminum
$25.00

William Optics 50mm Guiding Scope with 1.25" RotoLock - Red - M-G50IIWR

SKU: WYO-M-G50II-WR
  • Optical Aperture: 50 mm
  • Finder or Guidescope Magnification: Variable
$128.00

William Optics 50mm Guiding Scope with 1.25" RotoLock - Gold - M-G50IIWG

SKU: WYO-M-G50II-WG
  • Optical Aperture: 50 mm
  • Finder or Guidescope Magnification: Variable
$128.00

William Optics 50mm Guiding Scope with 1.25" RotoLock - Blue - M-G50IIWB

SKU: WYO-M-G50II-WB
  • Optical Aperture: 50 mm
  • Finder or Guidescope Magnification: Variable
$128.00

William Optics 2" Durabright RotoLock Diagonal - D-DIG2D-ROTO-A2 - Used

SKU: UEQ-11779-WYO-D-DIG2D-ROTO-A2
  • Diagonal Type: Mirror Diagonal
  • Diagonal Size - Eyepiece Side: 2" Barrel
  • Diagonal Size - Telescope Side: 2" Barrel
  • Includes Eyepiece Adapter: No, 1.25" Eyepiece Adapter Sold Separately
  • Optics Type and/or Coatings: DuraBright Coatings
Free shipping Free shipping
$198.00 $158.00

William Optics provides quality refractors, mounts, and accessories such as eyepieces, diagonals, and mounting hardware for amateur astronomers around the world. The CEO of the company is David Yang, an avid amateur astronomer and bird-watcher who feels strongly about offering premium optics to everyone with an interest in astronomy or nature, and not just to those with plenty of cash to spare.

When William Yang was a child, he thumbed through the pages of Sky & Telescope magazine and gazed at the beautiful images of our universe laid before him. His family could not afford to buy him a telescope, but he could dream of a day when he would be able to photograph galaxies and nebulae like the astrophotographers he admired so much. In 1986, David saved up all summer to buy a telescope to watch Halley's Comet, but before that he tried his hand at building his own telescopes with whatever supplies he could find; he even "borrowed" his grandmother's eyeglasses to use as the lenses for his first refractor!

In 1996, David opened William Optics in Taiwan. Four years later, in 2000, William Optics USA began by offering their break-out 80mm Megrez refractor to consumers in the United States. The quality, as well as the price, was amazing, and before long, William Optics had positioned themselves as one of the world leaders in fast, highly portable quality refractors.

William Optics also makes some great telescope accessories. Their WO Diagonals are celebrated the world over for their machining and optical quality, and their Ultra Wide Angle (UWA) and Super Wide Angle (SWA) eyepieces, with their unusual jet-black insertion barrels, have come to be known for their quality, but at an affordable price. We think William Yang has achieved what he set out to do; providing "More Quality for Less Money"; and we look forward to what he plans to do next!

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