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Mounting Hardware

Flexure is invisible until you see it in your stars. A dovetail that shifts a fraction of a millimetre under load, a guide scope on a soft bracket, a saddle clamping on one point instead of a face — each produces elongation that no processing corrects. David Astro carries mounting hardware items in Canada: dovetail bars and clamps, tube rings, saddles, side-by-side plates and adapter plates, in Canadian stock.

Getting this right is mostly a matter of matching standards and eliminating single points of contact. Tell us your tube diameter, mount saddle and payload and we will specify hardware that holds it rigidly.

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Baader Planetarium Dovetail Bar 3", 610mm (24") – for Celestron / Custom builds
CA$222.00 - CA$222.00
CA$222.00
CA$222.00 - CA$222.00
CA$222.00

Baader Planetarium Dovetail Bar 3", 610mm (24") – for Celestron / Custom builds

BAA-1501625

3" Losmandy-Style Dovetail 610mm (24") Total Length Black Anodized Finish Ideal for Celestron OTAs and Custom Builds Description FAQ Specificat...

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CA$222.00 - CA$222.00
CA$222.00
CA$222.00 - CA$222.00
CA$222.00
Baader Planetarium Dovetail Bar V, 200mm (7.9") – for Vixen, Celestron and Skywatcher Mounts
CA$72.00 - CA$72.00
CA$72.00
CA$72.00 - CA$72.00
CA$72.00

Baader Planetarium Dovetail Bar V, 200mm (7.9") – for Vixen, Celestron and Skywatcher Mounts

BAA-2451661

200mm (7.9") Length Vixen-Style V-Profile 44mm Base Width Compatible with Vixen, Celestron, and Sky-Watcher Mounts Description FAQ Specificatio...

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CA$72.00 - CA$72.00
CA$72.00
CA$72.00 - CA$72.00
CA$72.00
Baader Planetarium Dovetail Bar V, 495mm (19,5") – for Celestron RASA 8"
CA$113.00 - CA$113.00
CA$113.00
CA$113.00 - CA$113.00
CA$113.00

Baader Planetarium Dovetail Bar V, 495mm (19,5") – for Celestron RASA 8"

BAA-2451735

495mm (19.5") Vixen-style dovetail bar Designed for the Celestron RASA 8" astrograph Provides extended length for balancing imaging equipment Comp...

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CA$113.00 - CA$113.00
CA$113.00
CA$113.00 - CA$113.00
CA$113.00
Baader Planetarium Dovetail Bar Z, 120mm (4.7") – for Zeiss/Astro-Physics
CA$56.00 - CA$56.00
CA$56.00
CA$56.00 - CA$56.00
CA$56.00

Baader Planetarium Dovetail Bar Z, 120mm (4.7") – for Zeiss/Astro-Physics

BAA-2451103

120mm (4.7") Length Zeiss / Astro-Physics Mount Compatible "Z" Profile Dovetail Bar Provides Secure, Precision Fit Description FAQ Specificatio...

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CA$56.00 - CA$56.00
CA$56.00
CA$56.00 - CA$56.00
CA$56.00
Baader Planetarium Dovetail Bar Z, 200mm (7.9") – for Zeiss/Astro-Physics
CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00

Baader Planetarium Dovetail Bar Z, 200mm (7.9") – for Zeiss/Astro-Physics

BAA-2451104

200mm (7.9") Length Zeiss / Astro-Physics "Z" Dovetail Profile Dedicated Fit for Non-Vixen/Losmandy Mounts Provides Secure OTA-to-Mount Connection...

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CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00
Baader Planetarium Guidescope Rings (1 pair) – Size III, 140-185mm
CA$392.00 - CA$392.00
CA$392.00
CA$392.00 - CA$392.00
CA$392.00

Baader Planetarium Guidescope Rings (1 pair) – Size III, 140-185mm

BAA-1500203

Designed for Tube Diameters from 140-185mm Solid, Turned Aluminum Construction Non-Rotating, Non-Marring V2A Steel Tips Ball-Bearing Adjustment Me...

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CA$392.00 - CA$392.00
CA$392.00
CA$392.00 - CA$392.00
CA$392.00
Baader Planetarium Guidescope Rings (1 pair) – Size IV, 140-185mm
CA$947.00 - CA$947.00
CA$947.00
CA$947.00 - CA$947.00
CA$947.00

Baader Planetarium Guidescope Rings (1 pair) – Size IV, 175-265mm

BAA-1500204

Size IV Guidescope Rings (Pair) Non-Rotating, Non-Marring Adjustment Screws Ball-Bearing V2A Steel Screw Tips Integrated Accessory Mounting Points...

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CA$947.00 - CA$947.00
CA$947.00
CA$947.00 - CA$947.00
CA$947.00
Baader Planetarium Handle for Telescopes with 3" dovetail, incl. 2x 3" clamps
CA$121.00 - CA$121.00
CA$121.00
CA$121.00 - CA$121.00
CA$121.00

Baader Planetarium Handle for Telescopes with 3" dovetail, incl. 2x 3" clamps

BAA-2451581

Provides a secure carrying point for large telescopes Mounts directly to 3-inch Losmandy-style dovetail bars Includes two integrated 3-inch rider ...

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CA$121.00 - CA$121.00
CA$121.00
CA$121.00 - CA$121.00
CA$121.00
Baader Planetarium PAN-Adjuster Adapter to mount onto PlaneWave L-350
CA$209.00 - CA$209.00
CA$209.00
CA$209.00 - CA$209.00
CA$209.00

Baader Planetarium PAN-Adjuster Adapter to mount onto PlaneWave L-350

BAA-2451516

Adapts Baader PAN-Adjuster for use with PlaneWave L-350 mounts Attaches to the side port of the L-350 mount Enables precise parallel alignment of ...

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CA$209.00 - CA$209.00
CA$209.00
CA$209.00 - CA$209.00
CA$209.00
Baader Planetarium Baader PAN-Adjuster for Parallel Telescope Alignment
CA$1,726.00 - CA$1,726.00
CA$1,726.00
CA$1,726.00 - CA$1,726.00
CA$1,726.00

Baader Planetarium PAN-Adjuster for Parallel Telescope Alignment

BAA-2451515

Enables precise optical axis alignment of parallel-mounted telescopes Designed for PlaneWave L-Mounts and dual mounting plates Compatible with 3" ...

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CA$1,726.00 - CA$1,726.00
CA$1,726.00
CA$1,726.00 - CA$1,726.00
CA$1,726.00
CA$13.00 - CA$13.00
CA$13.00
CA$13.00 - CA$13.00
CA$13.00

Baader Sky Surfer III Adapter for Binoculars

BAA-2957305
1 in stock

Adapts Baader Sky Surfer III to Binoculars Mounts to Standard 1/4"-20 Tripod Sockets Enables Intuitive "Both-Eyes-Open" Targeting Ideal for High-M...

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CA$13.00 - CA$13.00
CA$13.00
CA$13.00 - CA$13.00
CA$13.00
CA$12.00 - CA$12.00
CA$12.00
CA$12.00 - CA$12.00
CA$12.00

Baader Sky Surfer III Adapter for Spotting Scopes

BAA-2957306

Adapts Baader Sky Surfer III to Spotting Scopes Enables Fast, Intuitive Target Acquisition Ideal for Terrestrial and Astronomical Use ...

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CA$12.00 - CA$12.00
CA$12.00
CA$12.00 - CA$12.00
CA$12.00
CA$50.00 - CA$50.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00

Baader Standard Dovetail Finder Base

BAA-2457000
1 in stock

Machined from a solid block of aluminum for zero flexure Sinusoidal base provides two linear contact points for stability Universal design fits a ...

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CA$50.00 - CA$50.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00
CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00

Baader Stronghold Additional set of EQ-clamp Brackets

BAA-2450317

Adds a Vixen-Style Mounting Point Designed for the Baader Stronghold Tangent Assembly Mounts to the Underside of the Stronghold Includes Two Brack...

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CA$66.00 - CA$66.00
CA$66.00
CA$66.00 - CA$66.00
CA$66.00
CA$121.00 - CA$121.00
CA$121.00
CA$121.00 - CA$121.00
CA$121.00

Baader V Series Dovetail Bar Mark III - 470mm fits C8/C9.25/C11

BAA-2451101

470mm total length provides extensive balancing range Vixen-style (V-Series) profile fits Celestron, Sky-Watcher, and Vixen GP mounts Pre-drilled ...

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CA$121.00 - CA$121.00
CA$121.00
CA$121.00 - CA$121.00
CA$121.00
CA$132.00 - CA$132.00
CA$132.00
CA$132.00 - CA$132.00
CA$132.00

Baader V-Series 1kg Leveling Counterweight & Clamp

BAA-2451531
1 in stock

Leveling counterweight for fine balance adjustments Integrated V-Series (Vixen-style) dovetail clamp Compatible with Synta EQ dovetail bars Slidin...

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CA$132.00 - CA$132.00
CA$132.00
CA$132.00 - CA$132.00
CA$132.00
CA$56.00 - CA$56.00
CA$56.00
CA$56.00 - CA$56.00
CA$56.00

Baader V-Series Dovetail - 120mm

BAA-2451650

V-Style Dovetail Bar Compatible with Vixen, Celestron, and SkyWatcher Mounts Provides a Secure, Rigid Connection for Optical Tubes Precision-Engin...

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CA$56.00 - CA$56.00
CA$56.00
CA$56.00 - CA$56.00
CA$56.00
CA$64.00 - CA$64.00
CA$64.00
CA$64.00 - CA$64.00
CA$64.00

Baader V-Series Dovetail - 180mm

BAA-2451660

M 36.4 is standard of Vixen telescopes Telescope side external thread 36.4mm Focuser side T-2 external thread (direct T-2 photo thread for Vixen, ...

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CA$64.00 - CA$64.00
CA$64.00
CA$64.00 - CA$64.00
CA$64.00
CA$107.00 - CA$107.00
CA$107.00
CA$107.00 - CA$107.00
CA$107.00

Baader V-Series Dovetail Bar - 345mm for C8 SCT/HD

BAA-2451734
1 in stock

345mm Length V-Series (Vixen-Style) Profile Pre-Drilled for Celestron 8" SCT/HD Celestron-Orange Anodized Finish Description FAQ Specifications...

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CA$107.00 - CA$107.00
CA$107.00
CA$107.00 - CA$107.00
CA$107.00
CA$124.00 - CA$124.00
CA$124.00
CA$124.00 - CA$124.00
CA$124.00

Baader V-Series Dovetail Bar - 455mm for C9.25/C22 SCT/HD

BAA-2451745

455mm Vixen-Style Dovetail Bar Pre-Drilled for Celestron 9.25" & 11" SCT/HD Telescopes Improves Balance with Heavy Accessories Durable Orange ...

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CA$124.00 - CA$124.00
CA$124.00
CA$124.00 - CA$124.00
CA$124.00
CA$70.00 - CA$70.00
CA$70.00
CA$70.00 - CA$70.00
CA$70.00

Baader V-Series Dovetail Clamp

BAA-2451530

Compatible with Vixen/Synta Style Dovetails Non-Marring Clamp Design Secure Full-Length Pressure Block Ideal for Custom Mounting Solutions Desc...

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CA$70.00 - CA$70.00
CA$70.00
CA$70.00 - CA$70.00
CA$70.00
CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00

Baader V-Series Handle for Telescopes

BAA-2451582

Provides a Secure Carrying Point for Telescopes Clamps Directly to Vixen-Style (V-Series) Dovetail Bars Compatible with EQ-5/HEQ-5 Standard Doveta...

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CA$139.00 - CA$139.00
CA$139.00
CA$139.00 - CA$139.00
CA$139.00
CA$319.00 - CA$319.00
CA$319.00
CA$319.00 - CA$319.00
CA$319.00

Baader V-Series PAN/EQ V190 Dovetail Saddle

BAA-2451525

Accepts Vixen-style (EQ Standard) dovetail bars 190 mm total length for maximum stability Features a 3-inch Losmandy-style dovetail on the base Tw...

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CA$319.00 - CA$319.00
CA$319.00
CA$319.00 - CA$319.00
CA$319.00
CA$286.00 - CA$286.00
CA$286.00
CA$286.00 - CA$286.00
CA$286.00

Baader Z(AP) Dovetail Bar - 200mm

BAA-1401130

200mm Dovetail Bar Designed for Zeiss Mounts Designed for Astro-Physics Mounts "Z" Profile Dovetail Standard Description FAQ Specifications In ...

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CA$286.00 - CA$286.00
CA$286.00
CA$286.00 - CA$286.00
CA$286.00

Dovetail Standards and Building a Rigid Connection

Nearly all mounting hardware follows one of two dovetail standards, and mixing them without the correct clamp is the most common cause of a telescope sitting loose on an otherwise good mount.

  • Vixen-style dovetail (approximately 44 mm): The lighter standard, fine for small refractors and visual loads up to a few kilograms.
  • Losmandy-style dovetail (approximately 75 mm): The wider, stiffer standard used for heavier optics and imaging trains where flexure must be minimized.
  • Tube rings: Sized to the tube's outer diameter and lined to protect it; rings allow rotation for framing without unbolting the optic.
  • Mount saddles: The receiving clamp on the mount head. Dual-fit saddles accept both standards, and face-clamping designs grip more securely than a single point screw.
  • Side-by-side plates: Carry two optical tubes on one mount with balance adjustment in both axes.
  • Adapter plates: Convert between standards, add accessory mounting points, or raise a guide scope clear of an obstruction.

Why Choose David Astro for Mounting Hardware

Rigidity is cumulative. Every joint between the optic and the mount either holds or contributes to the error you spend the night chasing.

  • Standard matching: We confirm your mount's saddle type and specify a dovetail that fits it fully, rather than one that seats on an edge.
  • Flexure diagnosis: If your guiding shows drift that guiding corrections cannot fix, we will look at the mechanical chain with you — usually it is a guide scope bracket or an undersized dovetail.
  • Tube diameter fitting: Rings are matched to actual measured outer diameter, since nominal aperture and tube diameter are not the same number.
  • Authorized dealer: Genuine hardware with full manufacturer warranty, shipped from Canadian stock.
  • No cross-border fees: Canadian orders ship domestically with no duties or brokerage charges.

Mounting Hardware in Canada — Frequently Asked Questions

Vixen or Losmandy dovetail?
Losmandy for anything above roughly 7 kg or for imaging where flexure matters. Vixen is adequate for smaller refractors and visual use, and is lighter and more common on entry-level mounts.
Can I put a Vixen bar in a Losmandy saddle?
Only with a dual-fit saddle or an adapter clamp. Forcing a narrow bar into a wide clamp results in point contact, which is exactly the condition that causes slipping under load.
Why do my stars elongate only on one side of a meridian flip?
That pattern usually indicates differential flexure rather than tracking error. Check the guide scope bracket, the dovetail seating and the focuser drawtube, in that order.
How do I size tube rings?
By the tube's outer diameter, not aperture. Measure the tube itself, or tell us the exact telescope model and we will confirm the correct ring size.

Chasing flexure?

Tell us your tube, mount and payload and we will specify hardware that holds it solid. Ships from Canada with expert support.