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Mount Accessories

A mount rarely arrives complete. Polar alignment needs a scope or a camera, balance needs the right counterweights and extension bars, meridian clearance often needs a pier extension, and the whole thing needs power that survives a cold night. David Astro carries mount accessories in Canada, polar scopes, counterweights, wedges, pier extensions, hand controller brackets, cable management and power distribution, stocked in Canada and shipped worldwide.

These are the parts that turn a working mount into a well-behaved one. Tell us your mount model and what is bothering you about your setup and we will point at the accessory that fixes it.

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Orion Optics UK 150mm Small Dob brake (recommended)
CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00

Orion Optics UK 150mm Small Dob brake (recommended)

Recommended for the 150mm Dobsonian mount Smooth, controllable altitude motion CNC machined in the UK Description Specifications In the Box War...

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CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00
Orion Optics UK 200mm Small Dob brake (recommended)
CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00

Orion Optics UK 200mm Small Dob brake (recommended)

Recommended for the 200mm Dobsonian mount Smooth, controllable altitude motion CNC machined in the UK Description Specifications In the Box War...

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CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00
Orion Optics UK 250mm Large Dob brake (recommended)
CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00

Orion Optics UK 250mm Large Dob brake (recommended)

Recommended for the 250mm Dobsonian mount Smooth, controllable altitude motion CNC machined in the UK Description Specifications In the Box War...

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CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00
Orion Optics UK 300mm Large Dob brake (recommended)
CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00

Orion Optics UK 300mm Large Dob brake (recommended)

Recommended for the 300mm Dobsonian mount Smooth, controllable altitude motion CNC machined in the UK Description Specifications In the Box War...

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CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00
Orion Optics UK 350mm Large Dob brake (recommended)
CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00

Orion Optics UK 350mm Large Dob brake (recommended)

Recommended for the 350mm Dobsonian mount Smooth, controllable altitude motion CNC machined in the UK Description Specifications In the Box War...

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CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00
Orion Optics UK 400mm Large Dob brake (recommended)
CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00

Orion Optics UK 400mm Large Dob brake (recommended)

Recommended for the 400mm Dobsonian mount Smooth, controllable altitude motion CNC machined in the UK Description Specifications In the Box War...

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CA$131.00 - CA$131.00
CA$131.00
CA$131.00 - CA$131.00
CA$131.00
Orion Optics UK Handle to fit flat surface (HANDLE-FLAT-SURF)
CA$167.00 - CA$167.00
CA$167.00
CA$167.00 - CA$167.00
CA$167.00

Orion Optics UK Handle to fit flat surface (HANDLE-FLAT-SURF)

CNC-machined aluminum construction Durable black anodized finish Ergonomic, ambidextrous grip Mounts to any flat surface Counterbored holes for fl...

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CA$167.00 - CA$167.00
CA$167.00
CA$167.00 - CA$167.00
CA$167.00
Orion Optics UK KN40GP CNC machined Mount Knob set
CA$263.00 - CA$263.00
CA$263.00
CA$263.00 - CA$263.00
CA$263.00

Orion Optics UK KN40GP CNC machined Mount Knob set

Replaces stock plastic knobs on equatorial mounts Precision CNC machined aluminum construction Durable black anodized finish Fits common 6mm diame...

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CA$263.00 - CA$263.00
CA$263.00
CA$263.00 - CA$263.00
CA$263.00
Orion Optics UK KN40x2 CNC machined Mount Knob BLUE set (KN40x2)
CA$226.00 - CA$226.00
CA$226.00
CA$226.00 - CA$226.00
CA$226.00

Orion Optics UK KN40x2 CNC machined Mount Knob BLUE set (KN40x2)

CNC Machined Aluminum Construction Durable Blue Anodized Finish Ergonomic Grip for Precise Manual Control Designed for Mounts with 6mm Worm Shafts...

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CA$226.00 - CA$226.00
CA$226.00
CA$226.00 - CA$226.00
CA$226.00
Orion Optics UK Radius Blocks for 200mm Scopes
CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00

Orion Optics UK Radius Blocks for 200mm Scopes

Precision-machined for 200mm diameter optical tubes Provides a stable, non-flexing mounting point for accessories Ideal for finderscopes, guide sc...

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CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00
Orion Optics UK Radius Blocks for 300mm Scopes
CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00

Orion Optics UK Radius Blocks for 300mm Scopes

Designed for 300mm Diameter Telescope Tubes Provides a Stable, Curved Mounting Surface Distributes Clamping Force to Prevent Tube Damage Ideal for...

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CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00
Orion Optics UK Radius Blocks for 350mm Telescopes
CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00

Orion Optics UK Radius Blocks for 350mm Telescopes

Provides a stable, flat mounting surface on a curved tube Precisely machined to match the radius of a 350mm telescope Ideal for attaching dovetail...

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CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00
Orion Optics UK Radius blocks to fit 150mm scope
CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00

Orion Optics UK Radius blocks to fit 150mm scope

Designed for 150mm Telescope Tubes Provides a Curved Mounting Surface Ensures a Secure, Flush Fit for Accessories Sold Individually Description...

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CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00
Orion Optics UK Radius Blocks to Fit 250mm Scope
CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00

Orion Optics UK Radius Blocks to Fit 250mm Scope

Designed to perfectly match 250mm diameter telescope tubes Provides a stable, no-flex mounting surface for accessories Prevents tube damage by dis...

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CA$100.00 - CA$100.00
CA$100.00
CA$100.00 - CA$100.00
CA$100.00
CA$49.00 - CA$49.00
CA$49.00
CA$49.00 - CA$49.00
CA$49.00

Pegasus Aluminum Standoffs (3 pcs) for NYX-101 and NYX-88

A pier extension (+18 cm / 7” is available). The pier can be easily constructed by purchasing the three (3) following parts: EQ6 / Universal adap...

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CA$49.00 - CA$49.00
CA$49.00
CA$49.00 - CA$49.00
CA$49.00
Pegasus Astro 2x 25mm risers for PEG-DOV335
CA$70.00 - CA$70.00
CA$70.00
CA$70.00 - CA$70.00
CA$70.00

Pegasus Astro 2x 25mm risers for PEG-DOV335

Adds 25mm of height to your optical tube Designed specifically for the Pegasus Astro 335mm Dovetail Plate (PEG-DOV335) Sold as a pair for stable, ...

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CA$70.00 - CA$70.00
CA$70.00
CA$70.00 - CA$70.00
CA$70.00
Pegasus Astro GPS Cord for 10Micron Mounts (transmits GPS and Sensor Data)
CA$18.00 - CA$18.00
CA$18.00
CA$18.00 - CA$18.00
CA$18.00

Pegasus Astro GPS Cord for 10Micron Mounts (transmits GPS and Sensor Data)

10 Meter (32.8 ft) Length Extends Pegasus Astro Uranus Meteo Sensor Transmits GPS Data to 10Micron Mounts Ensures Reliable Data Transmission De...

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CA$18.00 - CA$18.00
CA$18.00
CA$18.00 - CA$18.00
CA$18.00
Pegasus Astro Hand Controller for NYX Mount
CA$242.62 - CA$242.62
CA$242.62
CA$242.62 - CA$242.62
CA$242.62

Pegasus Astro Hand Controller for NYX Mount

Dedicated hand controller for Pegasus Astro NYX-88 and NYX-101 mounts Single-cable connection for power and data Large red film display preserves ...

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CA$242.62 - CA$242.62
CA$242.62
CA$242.62 - CA$242.62
CA$242.62
Pegasus Astro NYX-101 Altitude Lever
CA$37.00 - CA$37.00
CA$37.00
CA$37.00 - CA$37.00
CA$37.00

Pegasus Astro NYX-101 Altitude Lever

Designed for the Pegasus Astro NYX-101 Mount Enables fine altitude adjustments Improves ergonomics during polar alignment Provides superior levera...

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CA$37.00 - CA$37.00
CA$37.00
CA$37.00 - CA$37.00
CA$37.00
Pegasus Astro NYX-101 Azimuth Dowel
CA$37.00 - CA$37.00
CA$37.00
CA$37.00 - CA$37.00
CA$37.00

Pegasus Astro NYX-101 Azimuth Dowel

Enables fine azimuth adjustment for the Pegasus Astro NYX-101 mount Essential component for precise polar alignment Direct replacement for the ori...

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CA$37.00 - CA$37.00
CA$37.00
CA$37.00 - CA$37.00
CA$37.00
Pegasus Astro NYX101 v1 Retrofit Kit supporting heavier OTAs
CA$193.00 - CA$193.00
CA$193.00
CA$193.00 - CA$193.00
CA$193.00

Pegasus Astro NYX101 v1 Retrofit Kit supporting heavier OTAs

Upgrades older NYX-101 mounts to the latest mechanical revision Enhances stability for heavier optical tube assemblies (OTAs) Official Pegasus Ast...

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CA$193.00 - CA$193.00
CA$193.00
CA$193.00 - CA$193.00
CA$193.00
CA$55.00 - CA$60.00
CA$55.00 - CA$60.00
CA$55.00 - CA$60.00
CA$55.00

Pegasus EQDIR USB Stick for EQMOD

Our new compact EQDir USB Stick Adapter for EQMOD allows direct connection of Skywatcher HEQ5 Syntrek/PRO, NEQ6 Syntrek/PRO, AZ EQ6-GT and EQ8 moun...

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CA$55.00 - CA$60.00
CA$55.00 - CA$60.00
CA$55.00 - CA$60.00
CA$55.00
CA$43.00 - CA$43.00
CA$43.00
CA$43.00 - CA$43.00
CA$43.00

Pegasus NYX-101 Polemaster Detachable Adapter

Enables use of QHY Polemaster on Pegasus Astro NYX-101 and NYX-88 mounts Streamlines polar alignment for faster, more accurate setup Detachable de...

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CA$43.00 - CA$43.00
CA$43.00
CA$43.00 - CA$43.00
CA$43.00
CA$49.00 - CA$49.00
CA$49.00
CA$49.00 - CA$49.00
CA$49.00

PrimaLuceLab Counterweight PLUS 1Kg

Adds 1 Kg of targeted weight to your optical tube Part of the PrimaLuceLab PLUS modular system Attaches to Vixen or Losmandy plates via an optiona...

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CA$49.00 - CA$49.00
CA$49.00
CA$49.00 - CA$49.00
CA$49.00

What Actually Improves a Mount in Use

Most mount complaints resolve to one of four things: alignment accuracy, balance, clearance or power stability. Each has a specific accessory answer.

  • Polar scopes and alignment aids: Illuminated reticles and electronic polar alignment cameras that reduce alignment from a lengthy drift procedure to a few minutes.
  • Counterweights and extension bars: Correct balance reduces motor load and improves guiding; an extension bar lets a short heavy tube be balanced with less total weight.
  • Pier extensions: Raise the mount head so a long tube clears the tripod legs at the meridian, which is the fix for the most common and most annoying mechanical collision.
  • Equatorial wedges: Convert an alt-azimuth fork mount to equatorial tracking, eliminating field rotation for imaging.
  • Cable management: Clips, wraps and routing hardware that prevent the snag which ends an unattended session at 2 a.m.
  • Power supplies and distribution: Regulated supplies sized for cold-weather draw, since voltage sag is a frequent cause of stalls and tracking faults.

Why Choose David Astro for Mount Accessories

Accessory choice here is entirely mount-specific, so identifying your exact mount comes first.

  • Model-specific fitment: Counterweight shaft diameters, pier extension bolt patterns and wedge mounting all vary by mount, and we confirm the match before shipping.
  • Meridian clearance calculated: Give us your tube length and tripod height and we will work out whether you need an extension and how much.
  • Cold-weather power sizing: We size supplies for the current your mount draws when the grease is stiff at minus 25, not for the specification at room temperature.
  • Authorized dealer: Genuine accessories with full manufacturer warranty, in stock, with fast shipping across Canada and worldwide.

Mount Accessories in Canada: Frequently Asked Questions

Do I need a pier extension?

If your telescope strikes a tripod leg when crossing the meridian, or you cannot reach targets near the pole, yes. Send us your tube length and mount model and we will calculate the required height.

What counterweight do I need?

Enough to balance your payload at a sensible position on the shaft, roughly two thirds out, not at the very end. Shaft diameter is mount-specific, so tell us the model rather than the weight alone.

Is an electronic polar alignment camera worth it?

For imaging, usually yes. It reaches better accuracy than a polar scope in a fraction of the time and works when Polaris is obscured, which helps in urban backyards.

Why does my mount stall in the cold?

Most often voltage sag under load rather than a mechanical fault. Cold thickens lubricant, current draw rises, and an undersized supply or a long thin cable drops voltage below the mount's tolerance.

Finishing your mount setup?

Tell us your mount model and what is giving you trouble. We will specify the fix. Full warranty, shipped from Canada.