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.
Filters
Tele Vue Vixen-Tele Vue Mount Adapter
Connects Tele Vue Telescopes to Vixen Mounts Designed for Vixen Porta, Sphinx, and Great Polaris Mounts Accepts Tele Vue Telescope Cradles Machine...
View full detailsWanderer Astro ETA M54 Electronic Tilt Adjuster
Three Motorized Adjusters 2 Micron Positioning Accuracy 5mm Back Focus Consumption 470g Total Weight Full NINA Integration for Auto-Tilt Descri...
View full detailsWilliam Optics Extension Bar for iOptron Skyguider Pro
Adds a declination axis to the iOptron SkyGuider Pro Specifically designed to fit the iOptron SkyGuider Pro Description The Wi...
View full detailsWilliam Optics High Latitude WO Vixen Style Base Mount
Designed specifically for the iOptron Skyguider Pro Enables stable, precise polar alignment at high latitudes Includes Vixen-style mounting saddle...
View full detailsWilliam Optics iOptron Skyguider Pro Dec Adapter
Directly Mounts William Optics Scopes to iOptron Skyguider Pro Replaces the Standard Declination (DEC) Bracket Low-Profile Design for Enhanced Sta...
View full detailsWilliam Optics Low Latitude WO Vixen Style Base Mount
Designed for Low Latitude Observers Solid Aluminum Alloy Construction Precision Altitude & Azimuth Adjustment Knobs Vixen-Style Mounting Base ...
View full detailsWilliam Optics Mortar Pier Head Adapter - 3/8" Screw Mount
Designed to fit a 3/8" threaded pier. Universal 3/8" thread Limited lifetime warranty Description Warranty The William Optics M...
View full detailsWilliam Optics RC Focuser w/ Optional 0.8x RC Reducer Flattener
Provides precise focusing for Ritchey-Chrétien telescopes Includes an optional 0.8x reducer flattener for improved image quality Description...
View full detailsZWO 160mm Pier Extension
Adds 160mm (6.29") of height for increased OTA clearance Designed for ZWO AM5 and AM3 mounts Hollow, aircraft-grade aluminum construction for rigi...
View full detailsZWO AMH Hand Controller
Allows to control AM3 & AM5 mounts Description In the Box ...
View full detailsZWO Counterweight Bar for AM5 Mount
Extends AM5 mount payload capacity beyond 28 lbs 230 mm (9") total length for flexible balancing Standard 0.787" (20 mm) diameter fits common coun...
View full detailsZWO DC Y Splitter Cable
Powers two 12V accessories from one source Input: 1x Male DC Cigarette Lighter Plug Output: 2x Female DC Power Connectors Cable Length: 6 inches 2...
View full detailsZWO Replacement Fan for ASI Cameras
Official ZWO OEM replacement fan Restores original cooling performance to Cooled/Pro cameras Includes all necessary mounting hardware Backed by a ...
View full detailsZWO Shutter Release Cable for ASIAIR PRO
Unlocks bulb exposures beyond 30 seconds on select Nikon DSLRs Connects ASIAIR PRO or PLUS directly to the camera's shutter port 1-meter (3.3 ft) ...
View full detailsWhat 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 identification matters more than selection.
- 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.
- Domestic shipping: Heavy items like counterweights ship from Canada without duties or brokerage fees.
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 matters from 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.