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  • Original price $761.00 USD - Original price $761.00 USD
    Original price
    $761.00 USD
    $761.00 USD - $761.00 USD
    Current price $761.00 USD

    William Optics Mortar Tri-Pier w/ Bag

    WO-YG-MT1000BR

    Pier System designed for telescopes and instruments Offers high stability and adjustability Description In the Box Warranty The...

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    Original price $761.00 USD - Original price $761.00 USD
    Original price
    $761.00 USD
    $761.00 USD - $761.00 USD
    Current price $761.00 USD
  • Original price $148.00 USD - Original price $148.00 USD
    Original price
    $148.00 USD
    $148.00 USD - $148.00 USD
    Current price $148.00 USD

    William Optics Mounting Rings 90mm

    WO-M-M80R-B

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

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    Original price $148.00 USD - Original price $148.00 USD
    Original price
    $148.00 USD
    $148.00 USD - $148.00 USD
    Current price $148.00 USD
  • Original price $30.00 USD - Original price $30.00 USD
    Original price
    $30.00 USD
    $30.00 USD - $30.00 USD
    Current price $30.00 USD

    William Optics Pair of Riser Blocks

    WO-M-BK100-BL
    3 in stock

    Pair of riser blocks for elevating telescope mounting Compatible with various William Optics and standard mounting systems Description...

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    Original price $30.00 USD - Original price $30.00 USD
    Original price
    $30.00 USD
    $30.00 USD - $30.00 USD
    Current price $30.00 USD
  • Original price $3,798.00 USD - Original price $3,798.00 USD
    Original price
    $3,798.00 USD
    $3,798.00 USD - $3,798.00 USD
    Current price $3,798.00 USD

    William Optics Pleiades 111 Astrograph F/4.8 7-element WIFD

    WO-T-P-111BU

    7-Element APO Refractor Design F/4.8 Fast Focal Ratio Wide Image Field Design (WIFD) Portable and Versatile Description Specifications I...

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    Original price $3,798.00 USD - Original price $3,798.00 USD
    Original price
    $3,798.00 USD
    $3,798.00 USD - $3,798.00 USD
    Current price $3,798.00 USD
  • Original price $18,800.00 USD - Original price $18,800.00 USD
    Original price
    $18,800.00 USD
    $18,800.00 USD - $18,800.00 USD
    Current price $18,800.00 USD

    William Optics Pleiades 181 Astrograph F/5.5 7-element with 3 ED glasses

    WO-T-P-181RD

    7-Element APO with 3 ED Glasses Refractor Design F/5.5 Fast Focal Ratio Portable and Versatile Description Specifications In the Box ...

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    Original price $18,800.00 USD - Original price $18,800.00 USD
    Original price
    $18,800.00 USD
    $18,800.00 USD - $18,800.00 USD
    Current price $18,800.00 USD
  • Original price $1,998.00 USD - Original price $1,998.00 USD
    Original price
    $1,998.00 USD
    $1,998.00 USD - $1,998.00 USD
    Current price $1,998.00 USD

    William Optics Pleiades 68 Astrograph F/3.8 7-Element WIFD

    WO-T-P-68BU
    1 in stock

    7-Element APO Refractor Design F/3.8 Fast Focal Ratio WO Internal Focuser Design (WIFD) Portable and Versatile Description Specifications In th...

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    Original price $1,998.00 USD - Original price $1,998.00 USD
    Original price
    $1,998.00 USD
    $1,998.00 USD - $1,998.00 USD
    Current price $1,998.00 USD
  • Original price $806.00 USD - Original price $806.00 USD
    Original price
    $806.00 USD
    $806.00 USD - $806.00 USD
    Current price $806.00 USD

    William Optics RC Focuser w/ Optional 0.8x RC Reducer Flattener

    Options available

    Provides precise focusing for Ritchey-Chrétien telescopes Includes an optional 0.8x reducer flattener for improved image quality Description...

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    Original price $806.00 USD - Original price $806.00 USD
    Original price
    $806.00 USD
    $806.00 USD - $806.00 USD
    Current price $806.00 USD
  • Original price $85.00 USD - Original price $85.00 USD
    Original price
    $85.00 USD
    $85.00 USD - $85.00 USD
    Current price $85.00 USD

    William Optics Red Dot Finder Kit with Vixen Style Mounting Base

    WO-M-RDF-P-VB
    7 in stock

    Red dot finder for easy target acquisition Includes Vixen-style mounting base for versatile attachment Description The William...

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    Original price $85.00 USD - Original price $85.00 USD
    Original price
    $85.00 USD
    $85.00 USD - $85.00 USD
    Current price $85.00 USD
  • Original price $898.00 USD - Original price $898.00 USD
    Original price
    $898.00 USD
    $898.00 USD - $898.00 USD
    Current price $898.00 USD

    William Optics Redcat 51 WIFD with 32mm Guide Scope

    WO-L-RC51RDIII-KIT
    2 in stock

    51mm 4-elements Petzval refractor 250mm focal length - f/4.9 focal ratio 48mm image circle - No field flattener required! WIFD focuser design D...

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    Original price $898.00 USD - Original price $898.00 USD
    Original price
    $898.00 USD
    $898.00 USD - $898.00 USD
    Current price $898.00 USD
  • Original price $1,598.00 USD - Original price $1,598.00 USD
    Original price
    $1,598.00 USD
    $1,598.00 USD - $1,598.00 USD
    Current price $1,598.00 USD

    William Optics RedCat 61 WIFD with 32mm Guide Scope

    WO-T-C-61RD-KIT
    1 in stock

    51mm 4-elements Petzval refractor 300mm focal length - f/4.9 focal ratio 46mm image circle - No field flattener required WIFD focuser design ...

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    Original price $1,598.00 USD - Original price $1,598.00 USD
    Original price
    $1,598.00 USD
    $1,598.00 USD - $1,598.00 USD
    Current price $1,598.00 USD
  • Original price $1,798.00 USD - Original price $1,798.00 USD
    Original price
    $1,798.00 USD
    $1,798.00 USD - $1,798.00 USD
    Current price $1,798.00 USD

    William Optics Redcat 71 WIFD with 32mm Guide Scope

    WO-T-C-71RDII-KIT

    71mm APO F/4.9 Fast Focal Ratio Portable and Versatile Description Specifications In the Box Unleash your passion for astrophotography with ...

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    Original price $1,798.00 USD - Original price $1,798.00 USD
    Original price
    $1,798.00 USD
    $1,798.00 USD - $1,798.00 USD
    Current price $1,798.00 USD
  • Original price $137.00 USD - Original price $137.00 USD
    Original price
    $137.00 USD
    $137.00 USD - $137.00 USD
    Current price $137.00 USD

    William Optics RedCat Erecting Prism - 1.25" Silver Version

    WO-D-EP90-125-RC51-SL

    1.25" erecting prism for correct image orientation Silver-finished design specifically for RedCat telescopes Description The W...

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    Original price $137.00 USD - Original price $137.00 USD
    Original price
    $137.00 USD
    $137.00 USD - $137.00 USD
    Current price $137.00 USD
  • Original price $66.00 USD - Original price $66.00 USD
    Original price
    $66.00 USD
    $66.00 USD - $66.00 USD
    Current price $66.00 USD

    William Optics Saddle Plate for Vixen-Style Dovetail Plate - 90mm

    WO-M-SP90RC-RD

    Precision-machined from high-grade aluminum for a perfect fit Description The William Optics Saddle Plate for Vixen-Style Dovetail Plate - 9...

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    Original price $66.00 USD - Original price $66.00 USD
    Original price
    $66.00 USD
    $66.00 USD - $66.00 USD
    Current price $66.00 USD
  • Original price $43.00 USD - Original price $43.00 USD
    Original price
    $43.00 USD
    $43.00 USD - $43.00 USD
    Current price $43.00 USD

    William Optics SCT Connection for WO Diagonals - Gold

    WO-D-SCT-TA-G

    Adapter for connecting Schmidt-Cassegrain telescopes to William Optics diagonals Gold-anodized finish for durability and aesthetic appeal ...

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    Original price $43.00 USD - Original price $43.00 USD
    Original price
    $43.00 USD
    $43.00 USD - $43.00 USD
    Current price $43.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics Slide-Base 50mm Guiding Rings

    WO-M-GR50SL

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

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD

    William Optics Slide-Base 50mm Guiding Rings - No Adjustments Screws

    WO-M-GR50IISL

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

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    Original price $64.00 USD - Original price $64.00 USD
    Original price
    $64.00 USD
    $64.00 USD - $64.00 USD
    Current price $64.00 USD
  • Original price $109.52 USD - Original price $114.00 USD
    Original price
    $109.52 USD - $114.00 USD
    $109.52 USD - $114.00 USD
    Current price $109.52 USD

    William Optics Slide-Base UniGuide 32mm Scope

    Options available
    13 variants in stock

    Compact 32mm guide scope 120mm focal length For use with 1.25" guide cameras Description Upgrade your astrophotography equipment with the Wi...

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    Original price $109.52 USD - Original price $114.00 USD
    Original price
    $109.52 USD - $114.00 USD
    $109.52 USD - $114.00 USD
    Current price $109.52 USD
  • Original price $171.00 USD - Original price $171.00 USD
    Original price
    $171.00 USD
    $171.00 USD - $171.00 USD
    Current price $171.00 USD

    William Optics Slide-Base UniGuide 50mm Scope

    Options available
    3 variants in stock

    Make it easier to find and track guide stars User-friendly and can be set up quickly Description The William Optics Slide-Base UniGuide 50mm...

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    Original price $171.00 USD - Original price $171.00 USD
    Original price
    $171.00 USD
    $171.00 USD - $171.00 USD
    Current price $171.00 USD
  • Original price $59.00 USD - Original price $59.00 USD
    Original price
    $59.00 USD
    $59.00 USD - $59.00 USD
    Current price $59.00 USD

    William Optics Soft Carry Case for Z71 / Z73 / Star71 / GT71

    WO-BG1-P004

    Soft carry case designed specifically for William Optics Z71, Z73, Star71, and GT71 telescopes Offers protection an...

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    Original price $59.00 USD - Original price $59.00 USD
    Original price
    $59.00 USD
    $59.00 USD - $59.00 USD
    Current price $59.00 USD
  • Original price $49.00 USD - Original price $49.00 USD
    Original price
    $49.00 USD
    $49.00 USD - $49.00 USD
    Current price $49.00 USD

    William Optics Soft Carry Case for Zenithstar 61 Telescope

    WO-BG1-P006-A01BL01

    Soft carry case designed specifically for the William Optics Zenithstar 61 telescope Offers protection and convenience for transporting your...

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    Original price $49.00 USD - Original price $49.00 USD
    Original price
    $49.00 USD
    $49.00 USD - $49.00 USD
    Current price $49.00 USD
  • Original price $108.00 USD - Original price $108.00 USD
    Original price
    $108.00 USD
    $108.00 USD - $108.00 USD
    Current price $108.00 USD

    William Optics SPL 55° 12.5mm Eyepiece - 1.25"

    WO-E-SPL12.5

    1.25-inch eyepiece with 55° apparent field of view 12.5mm focal length for medium-high magnification viewing Description The W...

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    Original price $108.00 USD - Original price $108.00 USD
    Original price
    $108.00 USD
    $108.00 USD - $108.00 USD
    Current price $108.00 USD
  • Original price $399.00 USD - Original price $399.00 USD
    Original price
    $399.00 USD
    $399.00 USD - $399.00 USD
    Current price $399.00 USD

    William Optics STC Astro Duo-Narrowband Filter

    WO-YF-STC-ADN

    Dual-bandpass filter for astrophotography Optimized for H-alpha and OIII emission lines Description The William Optics STC Ast...

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    Original price $399.00 USD - Original price $399.00 USD
    Original price
    $399.00 USD
    $399.00 USD - $399.00 USD
    Current price $399.00 USD
  • Original price $198.00 USD - Original price $198.00 USD
    Original price
    $198.00 USD
    $198.00 USD - $198.00 USD
    Current price $198.00 USD

    William Optics STC Ultra Layer Astro Multispectra Filter - 48mm

    WO-YF-STC-M48

    Multi-bandpass filter for astrophotography 48mm thread-on design for easy attachment Description The William Optics STC Ultra ...

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    Original price $198.00 USD - Original price $198.00 USD
    Original price
    $198.00 USD
    $198.00 USD - $198.00 USD
    Current price $198.00 USD
  • Original price $112.00 USD - Original price $112.00 USD
    Original price
    $112.00 USD
    $112.00 USD - $112.00 USD
    Current price $112.00 USD

    William Optics STL Adapter for FLT Flattener

    WO-P-STL

    STL adapter designed for William Optics FLT flatteners Ensures a secure connection between your FLT flattener and S...

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    Original price $112.00 USD - Original price $112.00 USD
    Original price
    $112.00 USD
    $112.00 USD - $112.00 USD
    Current price $112.00 USD