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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

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$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00

William Optics Slide-Base UniGuide 50mm Scope

Options available
7 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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$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00
$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00

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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$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00
$478.00 - $478.00
$478.00
$478.00 - $478.00
$478.00

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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$478.00 - $478.00
$478.00
$478.00 - $478.00
$478.00
$238.00 - $238.00
$238.00
$238.00 - $238.00
$238.00

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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$238.00 - $238.00
$238.00
$238.00 - $238.00
$238.00
$138.00 - $138.00
$138.00
$138.00 - $138.00
$138.00

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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$138.00 - $138.00
$138.00
$138.00 - $138.00
$138.00
$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00

William Optics Super High Precision COPPER T-Mount for Canon EOS Full Frame

WO-YE-TR-BR48-C
1 in stock

Super high precision T-Mount designed for Canon EOS full-frame cameras Constructed from durable copper for enhanced...

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$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00

William Optics Super High Precision COPPER T-Mount for Nikon Full Frame

WO-YE-TR-BR48-N

Super high precision T-Mount designed for Nikon full-frame cameras Constructed from durable copper for enhanced sta...

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$108.00 - $108.00
$108.00
$108.00 - $108.00
$108.00
$156.00 - $156.00
$156.00
$156.00 - $156.00
$156.00

William Optics SWAN 72° 40mm Eyepiece - 2"

WO-E-SWA40
5 in stock

2-inch eyepiece with 72° apparent field of view 40mm focal length for wide-field, low-magnification viewing Description The Wi...

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$156.00 - $156.00
$156.00
$156.00 - $156.00
$156.00
$3,998.00 - $3,998.00
$3,998.00
$3,998.00 - $3,998.00
$3,998.00

William Optics UltraCat 108 f/4.8 WIFD

WO-T-C-108BR
1 in stock

$3,998.00 - $3,998.00
$3,998.00
$3,998.00 - $3,998.00
$3,998.00
$1,398.00 - $1,398.00
$1,398.00
$1,398.00 - $1,398.00
$1,398.00

William Optics UltraCat 56 f/4.8 WIFD

WO-T-C-56BR
6 in stock

$1,398.00 - $1,398.00
$1,398.00
$1,398.00 - $1,398.00
$1,398.00
$2,198.00 - $2,198.00
$2,198.00
$2,198.00 - $2,198.00
$2,198.00

William Optics UltraCat 76 f/4.8 WIFD

WO-T-C-76BR
2 in stock

$2,198.00 - $2,198.00
$2,198.00
$2,198.00 - $2,198.00
$2,198.00
$76.00 - $76.00
$76.00
$76.00 - $76.00
$76.00

William Optics Vixen Style Finder Mounting Bracket

WO-M-FB50-B
1 in stock

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

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$76.00 - $76.00
$76.00
$76.00 - $76.00
$76.00
$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00

William Optics Vixen Style Finder Mounting Bracket for RedCat - Black Base

WO-M-FB50-RC-BB

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

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$80.00 - $80.00
$80.00
$80.00 - $80.00
$80.00
$22.00 - $22.00
$22.00
$22.00 - $22.00
$22.00

William Optics Vixen Style Mounting Base

WO-BAFM-ST001
3 in stock

Work with Vixen-style dovetail bars Made of durable materials Description The William Optics Vixen Style Mounting Base is an accessor...

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$22.00 - $22.00
$22.00
$22.00 - $22.00
$22.00
Sold out
$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00

William Optics Vixen-Style 8" Dovetail Plate - Black

WO-M-PVB

Designed to fit Vixen-style dovetail mounts Ensures durability and a lightweight design. Description The William Optics Vixen-...

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$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00
Sold out
$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00

William Optics Vixen-Style 8" Dovetail Plate - Red

WO-M-PVR

Designed to fit Vixen-style dovetail mounts Ensures durability and a lightweight design. Description The William Optics Vixen-...

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$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00
$806.00 - $806.00
$806.00
$806.00 - $806.00
$806.00

William Optics WO x0.72 Reducer Flattener 8

WO-P-FLAT8

0.72x reducer/flattener for William Optics refractor telescopes Reduces focal length and corrects field curvature for improved astrophotogra...

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$806.00 - $806.00
$806.00
$806.00 - $806.00
$806.00
$788.00 - $788.00
$788.00
$788.00 - $788.00
$788.00

William Optics x0.8 Reducer Flattener 7A

WO-P-FLAT7A

0.8x reducer/flattener for William Optics refractor telescopes Reduces focal length while correcting field curvature Description ...

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$788.00 - $788.00
$788.00
$788.00 - $788.00
$788.00
$683.16 - $697.00
$683.16 - $697.00
$683.16 - $697.00
$683.16

William Optics Zenithstar 61II APO

Options available

61mm APO using FPL-53 Glass F/5.9 Fast Focal Ratio Portable and Versatile Description Specifications In the Box Unleash your passion for ast...

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$683.16 - $697.00
$683.16 - $697.00
$683.16 - $697.00
$683.16
$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00

William Optics Zenithstar 81 WIFD Telescope

Options available

$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00
$76.00 - $76.00
$76.00
$76.00 - $76.00
$76.00

William Optics ZenithStar V1 Upgrade Mounting Ring

Options available

Allows for simple installation Made with improved CNC for greater rigidity Description The William Optics ZenithStar V1 Upgrade Mounting Rin...

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$76.00 - $76.00
$76.00
$76.00 - $76.00
$76.00
Save 10% Save %
$59.00
$59.00 - $59.00
$59.00
$53.00
$53.00 - $53.00
$53.00

ZWO 12V 10A AC to DC Power Adapter

ZWO-DC12V10A
12 in stock

Output: 12V DC, 10A Maximum Power: 120W Input: 100-240V AC Connector: 5.5mm x 2.1mm Center-Positive Safety Certifications: FCC, CE, RoHS Descri...

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$59.00
$59.00 - $59.00
$59.00
$53.00
$53.00 - $53.00
$53.00
Save 10% Save %
Save 10% Save %
$29.00
$29.00 - $29.00
$29.00
$26.00
$26.00 - $26.00
$26.00

ZWO 12V 5A AC to DC Power Adapter

ZWO-AC-DC12V5A
21 in stock

Input Voltage: 100-240V AC Output: 12V DC at 5A Connector: 5.5mm x 2.1mm Center-Positive Compatibility: Cooled Cameras, ASIAIR, AM Mounts D...

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$29.00
$29.00 - $29.00
$29.00
$26.00
$26.00 - $26.00
$26.00
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Save 10% Save %
$99.00
$99.00 - $99.00
$99.00
$89.00
$89.00 - $89.00
$89.00

ZWO 160mm Pier Extension

ZWO-PE160
11 in stock

Adds 160mm (6.29") of height for increased OTA clearance Designed for ZWO AM5 and AM3 mounts Hollow, aircraft-grade aluminum construction for rigi...

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$99.00
$99.00 - $99.00
$99.00
$89.00
$89.00 - $89.00
$89.00
Save 10% Save %