William Optics

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William Optics William Optics Fluorostar 156 f7.8 with Rack & Pinion Focuser A-F156-RP37 (Specify Color)
William Optics' 156 Fluorostar APO refractor is designed to provide unparalleled views. FLT156s are designed for visual and photographic use.
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William Optics Fluorostar 156 f7.8 with Rack & Pinion Focuser A-F156-RP37 (Specify Color)
$7,398.00
William Optics William Optics Fluorostar 132 f7 with Innovative Bahtinov Mask Cover (Patented) (Specify Color)
The William Optics Fluorostar 132 APO Refractor will capture the fine details of the night sky with stunning resolution
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William Optics Fluorostar 132 f7 with Innovative Bahtinov Mask Cover (Patented) (Specify Color)
$4,378.00
William Optics William Optics Fluorostar 120mm f6.5 with Innovative Bahtinov Mask Cover (Patented) (Specify Color)
William Optics' 120 Fluorostar APO refractor is designed to provide unparalleled views
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William Optics Fluorostar 120mm f6.5 with Innovative Bahtinov Mask Cover (Patented) (Specify Color)
$3,298.00
William Optics William Optics Gran Turismo 81 APO Refractor Kit w Internal Focus Design and 32mm UniGuide - Red
The William Optics Gran Turismo 81 is an apochromatic triplet refractor with a unique focuser design.
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William Optics Gran Turismo 81 APO Refractor Kit w Internal Focus Design and 32mm UniGuide - Red
$2,241.00
William Optics Willam Optics GT81 with Internal Focus Design (WIFD) Apochromatic Series (SPECIFY COLOR)
Introducing the WILLIAM OPTICS Internal Focus Design (WIFD) Apochromatic Series.
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Willam Optics GT81 with Internal Focus Design (WIFD) Apochromatic Series (SPECIFY COLOR)
$1,998.00
William Optics William Optics Fluorostar 91 with 3.3" Rack & Pinion Focuser - Specify Color
William Optics Flourostar 91 with 3.3" Rack & Pinion Focuser - Available in Red, Gold, and Space Gray.
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William Optics Fluorostar 91 with 3.3" Rack & Pinion Focuser - Specify Color
$1,998.00
William Optics William Optics RedCat 71 APO 350mm f/4.9
The WO Cat71 is a 71-mm f/4.9 refractor using a Petzval design with a doublet front element incorporating FPL-53 glass, plus a single central element and a single rear lens. By this design, our WO Cat71 provides a flat image plane without any additional f
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William Optics RedCat 71 APO 350mm f/4.9
$1,698.00
William Optics William Optics RC focuser and 0.8x Reducer Flattener kit (Specify Color)
The 3.3" William Optics Rack & Pinion RC Focuser is made to work with GSO Ritchey-Chrétien telescopes. This type of focuser is compatible with Apertura RC telescopes as well!
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William Optics RC focuser and 0.8x Reducer Flattener kit (Specify Color)
$1,613.00
William Optics William Optics Gran Turismo 81 IV APO Refractor (Specify Color)
The William Optics Gran Turismo 81mm refractor features a CNC machined optical tube with an immaculate white finish and Trim color of your choice
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William Optics Gran Turismo 81 IV APO Refractor (Specify Color)
$1,568.00
William Optics William Optics Gran Turismo 71 OTA. f/5.9 triplet APO, 2.5” R&P Focuser in Red with Free CAA63 Rotator and FLAT6AIII Flattener
From its immaculate CNC-machined powder white aluminum tube to its elegant red trim, the stunning new William Optics 71 mm Gran Turismo APO Refractor is a sight to behold.
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William Optics Gran Turismo 71 OTA. f/5.9 triplet APO, 2.5” R&P Focuser in Red with Free CAA63 Rotator and FLAT6AIII Flattener
$1,065.00
William Optics William Optics GT71 f/5.9 FPL-53 Triplet APO RED Refractor w/Flat6AIII Field Flattener & Dual Side Dovetail
From its immaculate CNC-machined powder white aluminum tube to its elegant gold trim, the stunning new William Optics 71 mm Gran Turismo APO Refractor is a sight to behold.
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William Optics GT71 f/5.9 FPL-53 Triplet APO RED Refractor w/Flat6AIII Field Flattener & Dual Side Dovetail
$1,065.00
William Optics William Optics Zenithstar 81 APO with Reducer/Flattner (Specify Color)
Beautiful two element design APO Refractor, with a flattener included!
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William Optics Zenithstar 81 APO with Reducer/Flattner (Specify Color)
$1,030.00
William Optics William Optics Gran Turismo 71 OTA. f/5.9 triplet APO, 2.5” R&P Focuser in Red with Free CAA63 Rotator
The crown jewel of the apochromatic refractor universe
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William Optics Gran Turismo 71 OTA. f/5.9 triplet APO, 2.5” R&P Focuser in Red with Free CAA63 Rotator
$933.00
William Optics William Optics Gran Turismo 71 OTA f/5.9 triplet APO 2.5 R&P Focuser - A-F71GTII | GOLD (LIMITED QUANTITIES)
William Optics GT71 f/5.9 FPL-53 Triplet Refractor w/ Dual Dovetail Plate - A-F71GTII
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William Optics Gran Turismo 71 OTA f/5.9 triplet APO 2.5 R&P Focuser - A-F71GTII | GOLD (LIMITED QUANTITIES)
$933.00
William Optics William Optics Zenithstar 81 APO (Specify Color)
This 81mm ZenithStar APO refractor is a great addition to the ranks of telescopes that are devoted to providing fantastic astro-images
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William Optics Zenithstar 81 APO (Specify Color)
$888.00
William Optics William Optics RedCat 51 Gen 2 f/4.9 APO Refractor Telescope - Upgraded Version
This upgraded 51 mm RedCat is a perfect scope for the beginner or advanced astrophotographer looking to shoot expansive deep-sky images while increasing the portability of their astrophotography setup.
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William Optics RedCat 51 Gen 2 f/4.9 APO Refractor Telescope - Upgraded Version
$865.00
William Optics William Optics RC focuser (for GSO RC Scope) (Specify Color)
On the telescope side of the focuser, you will find a large flange to connect the focuser to the OTA. This flange also works as a spacer, providing more space if you would like to add a user supplied filter wheel and/or Off-Axis Guider (OAG).

The body
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William Optics RC focuser (for GSO RC Scope) (Specify Color)
$806.00
William Optics William Optics x0.72 Reducer Flattener 8 - P-FLAT8
This revolutionary new WO x0.72 Reducer flattener it’s Adjustable was made for 6 -7.8 F ratio refractors.
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William Optics x0.72 Reducer Flattener 8 - P-FLAT8
$806.00
William Optics William Optics 1000 Mortar Tri-Pier Red with Standard 3/8" Plate Adapter
This William Optics tri-pier is made out of 6061T Aluminum and Stainless Steel.
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William Optics 1000 Mortar Tri-Pier Red with Standard 3/8" Plate Adapter
$761.00
William Optics William Optics 1000 Mortar Tri-Pier Red with Ioptron Adapter
This Tri-Pier from William Optics is a great accessory for those looking for the stability of the pier, but the leveling flexibility of a tripod.
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William Optics 1000 Mortar Tri-Pier Red with Ioptron Adapter
$761.00
William Optics William Optics Zenithstar 73 III APO (Specify Color)
Works great with most cameras, camera lenses, and small scopes on either a Vixen-style mount or an Arca Swiss saddle.
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William Optics Zenithstar 73 III APO (Specify Color)
$730.00
William Optics William Optics 0.8x Reducer Flattener 7 (Black) for FLT132 and GT153 only GT102 (optional)
William Optics Flattener 7 for Gran Turismo 102 APO Refractor
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William Optics 0.8x Reducer Flattener 7 (Black) for FLT132 and GT153 only GT102 (optional)
$691.00
William Optics William Optics New Adjustable Flattener 68III for FLT132/GT102/GT153
This revolutionary new WO FF68III Adjustable Flattener was made for 6 -7.5 F ratio refractors.
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William Optics New Adjustable Flattener 68III for FLT132/GT102/GT153
$656.00
William Optics William Optics Astro Carbon Fiber Tripod Set
WO Astro Tripod Set for 3/8" thread / iOptron / VIXEN / TAKAHASHI Equatorial Mount.
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William Optics Astro Carbon Fiber Tripod Set
$650.00