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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.

William Optics Off-Axis Guiders & Guide Scopes

William Optics off-axis guiders and guide scopes give a guide camera a view of a guide star for autoguiding. The Elite Drawer OAG kit picks off light inside the imaging train, which avoids flexure between guide and main optics at longer focal lengths.

Guide scopes include the UniGuide 32mm and 50mm, the 50mm Guiding Scope in black or red and the larger GuideStar 61. Slide-base 50mm guiding rings and saddle handle bars with guiding rings mount a guide scope on top of the main telescope.

Filters

$137.00 - $137.00
$137.00
$137.00 - $137.00
$137.00

William Optics Slide-Base UniGuide 32mm Scope

Options available
7 variants in stock

32mm Doublet Objective Lens Fast f/3.75 Focal Ratio 120mm Focal Length Integrated Vixen/Synta-Style Slide-Base Ultra-Lightweight at 0.23 kg (0.51 ...

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$137.00 - $137.00
$137.00
$137.00 - $137.00
$137.00
$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

50mm Aperture Doublet Lens 200mm Focal Length (f/4.0) Integrated 1.25" RotoLock Adapter Slide-Base for William Optics Handles Total Weight: 0.5 kg...

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$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00
$141.00 - $141.00
$141.00
$141.00 - $141.00
$141.00

William Optics 243mm Saddle Handle Bar with 50mm Guiding Rings

WO-M-HC243BL-GR50IISL

Compatible with William Optics' slide-base guide rings Can be used to make William Optics telescopes portable Description The Wil...

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$141.00 - $141.00
$141.00
$141.00 - $141.00
$141.00
$118.00 - $118.00
$118.00
$118.00 - $118.00
$118.00

William Optics 120mm Saddle Handle Bar with 50mm Guiding Rings

WO-M-HC120BL-GR50SL

120 mm Total Length Patented Handle and Saddle Design Mini-Vixen Dovetail Saddle Includes 50mm Guide Rings 44 mm Width Description FAQ Specific...

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$118.00 - $118.00
$118.00
$118.00 - $118.00
$118.00
$97.00 - $97.00
$97.00
$97.00 - $97.00
$97.00

William Optics 120mm Saddle Handle Bar with 50mm Guiding Rings - No Adjustments Screws

WO-M-HC120BL-GR50IISL

120 mm Length Integrated 50mm Guide Rings Mini-Vixen Style Top Saddle 44 mm Width Designed for Maximum Rigidity Description FAQ Specifications ...

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$97.00 - $97.00
$97.00
$97.00 - $97.00
$97.00
$76.00 - $76.00
$76.00
$76.00 - $76.00
$76.00

William Optics Slide-Base 50mm Guiding Rings

WO-M-GR50SL
1 in stock

Securely holds guidescopes and finders with a 50mm tube diameter Slide-base design allows for fore-and-aft adjustment for precise balancing Essent...

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$76.00 - $76.00
$76.00
$76.00 - $76.00
$76.00
$398.00 - $438.00
$398.00 - $438.00
$398.00 - $438.00
$398.00

William Optics GuideStar 61

Options available

FPL53 ED Air-Spaced Doublet Lens Dual-Purpose Guide Scope and Imaging Telescope Draw-Tube (Push-Pull) Focuser Rotating Lens Assembly for Image Fra...

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$398.00 - $438.00
$398.00 - $438.00
$398.00 - $438.00
$398.00
$388.00 - $388.00
$388.00
$388.00 - $388.00
$388.00

William Optics Elite Drawer OAG Kit

WO-M-OAG-ED
4 in stock

Integrates Off-Axis Guider and Filter Drawer 37.5 mm Optical Length Supports M48, M54, and M68 Connections Magnetic M48 Filter Holder 336 g (11.85...

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$388.00 - $388.00
$388.00
$388.00 - $388.00
$388.00
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00

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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$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00
$148.00 - $178.00
$148.00 - $178.00
$148.00 - $178.00
$148.00

William Optics 50mm Guiding Scope

Options available
1 variants in stock

50mm Aperture Doublet Lens 200mm Focal Length f/4.0 Focal Ratio 1.25" RotoLock Eyepiece Holder Total Weight: 0.42 kg / 0.93 lbs Description FAQ...

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$148.00 - $178.00
$148.00 - $178.00
$148.00 - $178.00
$148.00