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Plaques à queue d'aronde

A dovetail plate is the single mechanical link between your telescope and everything holding it up, and its stiffness sets the floor for how well your system can guide. David Astro stocks dovetail plates in Canada in both Vixen and Losmandy standards, in lengths from short accessory bars to full-length observatory plates, shipping from Canadian stock.

Choosing correctly is mostly about matching the standard to your mount's saddle and the length to your balance range. Tell us your mount and tube and we will specify the bar.

Filtres

$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00

Plaque PrimaLuceLab Losmandy 140mm PLUS

PLL-PLLLOS140P
2 en stock

La plaque à queue d'aronde de style Losmandy 140 mm PLUS est conçue pour vous permettre d'installer vos télescopes sur des montures avec cette plaq...

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$49.00 - $49.00
$49.00
$49.00 - $49.00
$49.00
$74.00 - $74.00
$74.00
$74.00 - $74.00
$74.00

Plaque PrimaLuceLab Losmandy 240mm PLUS

PLL-PLLLOS240P
5 en stock

La plaque à queue d'aronde de style Losmandy 240 mm PLUS est conçue pour vous permettre d'installer vos télescopes sur des montures avec cette plaq...

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$74.00 - $74.00
$74.00
$74.00 - $74.00
$74.00
$89.00 - $89.00
$89.00
$89.00 - $89.00
$89.00

Plaque PrimaLuceLab Losmandy 350mm PLUS

PLL-PLLLOS350P
6 en stock

La plaque à queue d'aronde de style Losmandy 350 mm PLUS est conçue pour vous permettre d'installer vos télescopes sur des montures avec cette plaq...

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$89.00 - $89.00
$89.00
$89.00 - $89.00
$89.00
$109.00 - $109.00
$109.00
$109.00 - $109.00
$109.00

Plaque PrimaLuceLab Losmandy 495mm PLUS

PLL-PLLLOS495P

La plaque à queue d'aronde de style Losmandy 495 mm PLUS est conçue pour vous permettre d'installer vos télescopes sur des montures avec cette conn...

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$109.00 - $109.00
$109.00
$109.00 - $109.00
$109.00
$245.00 - $245.00
$245.00
$245.00 - $245.00
$245.00

PrimaLuceLab Losmandy Plate 915mm PLUS

PLL-PLLLOS915P

915mm Losmandy-style dovetail plate Supports optical tubes up to 30 kg 13mm thick CNC-machined aluminum construction Weighs 2.3 kg Part of the mod...

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$245.00 - $245.00
$245.00
$245.00 - $245.00
$245.00
PrimaLuceLab Losmandy Style Dovetail Plate 1100mm PLUS
$325.00 - $325.00
$325.00
$325.00 - $325.00
$325.00

PrimaLuceLab Losmandy Style Dovetail Plate 1100mm PLUS

PLL-PLLLOS1100P

1100mm full length for mounting large optical tubes 13mm thickness prevents flexure under heavy loads Supports optical tubes up to 30 kg Weighs 3....

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$325.00 - $325.00
$325.00
$325.00 - $325.00
$325.00
PrimaLuceLab Losmandy style dovetail plate 645mm PLUS
$159.00 - $159.00
$159.00
$159.00 - $159.00
$159.00

PrimaLuceLab Losmandy style dovetail plate 645mm PLUS

PLL-PLLLOS645P

645mm Losmandy-Style Dovetail Plate Part of the PrimaLuceLab PLUS Modular System CNC Machined from a Solid Aluminum Block Hard-Anodized Finish for...

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$159.00 - $159.00
$159.00
$159.00 - $159.00
$159.00
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00

Blocs courbes PrimaLuceLab PLUS pour Celestron C8, C9.25, C11, EdgeHD 800, 925, 1100 ou Meade SC et ACF 8"

PLL-PLLSAG925
2 en stock

Si vous avez un télescope Celestron C8, C9.25, C11, EdgeHD 800, 925, 1100 ou Meade SC et ACF 8" et que vous souhaitez connecter une barre de type L...

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$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00

Plaque PrimaLuceLab Vixen 140mm PLUS

PLL-PLLVIX140P
2 en stock

La plaque à queue d'aronde style Vixen 140 mm PLUS fait partie de notre système PLUS (Prima Luce Universal System) qui comprend une grande varié...

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$39.00 - $39.00
$39.00
$39.00 - $39.00
$39.00
$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00

Plaque PrimaLuceLab Vixen 240mm PLUS

PLL-PLLVIX240P
2 en stock

La plaque à queue d'aronde style Vixen 240 mm PLUS fait partie de notre système PLUS (Prima Luce Universal System) qui comprend une grande variét...

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$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00
$79.00 - $79.00
$79.00
$79.00 - $79.00
$79.00

Plaque PrimaLuceLab Vixen 350mm PLUS

PLL-PLLVIX350P
2 en stock

La plaque à queue d'aronde style Vixen 350 mm PLUS fait partie de notre système PLUS (Prima Luce Universal System) qui comprend une grande varié...

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$79.00 - $79.00
$79.00
$79.00 - $79.00
$79.00
$34.00 - $34.00
$34.00
$34.00 - $34.00
$34.00

Plaque PrimaLuceLab Vixen 90mm PLUS

PLL-PLLVIX90P
1 en stock

La plaque à queue d'aronde style Vixen 90 mm PLUS fait partie de notre système PLUS (Prima Luce Universal System) qui comprend une grande variét...

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$34.00 - $34.00
$34.00
$34.00 - $34.00
$34.00
$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00

Queue d'aronde universelle Sky-Watcher série D 180 mm (7")

SW-S31000
1 en stock

Plaque à queue d'aronde de style Losmandy anodisée verte Sky-Watcher de 180 mm (7 pouces)

$60.00 - $60.00
$60.00
$60.00 - $60.00
$60.00
$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00

Queue d'aronde universelle Sky-Watcher série D 355 mm (14")

SW-S31010

Plaque à queue d'aronde de style Losmandy anodisée verte Sky-Watcher de 355 mm (14 pouces)

$100.00 - $100.00
$100.00
$100.00 - $100.00
$100.00
Épuisé
$575.00 - $575.00
$575.00
$575.00 - $575.00
$575.00

Accessoire pour télescope Bisque Software Plaque en queue d'aronde

SB10325

Ajoutez facilement des équipements aux anneaux Software Bisque OTA. La plaque accessoire en queue d'aronde se monte sur les anneaux Software Bisqu...

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$575.00 - $575.00
$575.00
$575.00 - $575.00
$575.00
Épuisé
SVBONY SV219 Vixen Style Dovetail Plate for Telescope Mounting
$11.51 - $11.51
$11.51
$11.51 - $11.51
$11.51

SVBONY SV219 120mm Black Vixen-Style Dovetail Mounting Plate

SV-W9175A
2 en stock

Function: Vixen-Style Dovetail Plate Material: Strong and Lightweight Aluminum Construction Finish: Black Anodized for Corrosion and Wear Resistan...

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$11.51 - $11.51
$11.51
$11.51 - $11.51
$11.51
SVBONY SV219 Vixen Style Dovetail Plate for Telescope Mounting
$13.67 - $13.67
$13.67
$13.67 - $13.67
$13.67

SVBONY SV219 210mm Black Vixen-Style Dovetail Mounting Plate

SV-W9175B
4 en stock

Vixen-Standard Width for Broad Mount Compatibility Lightweight and Rigid Aluminum Construction Durable Black Anodized Finish Resists Wear and Corr...

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$13.67 - $13.67
$13.67
$13.67 - $13.67
$13.67
SVBONY SV219 Vixen Style Dovetail Plate for Telescope Mounting
$18.33 - $18.33
$18.33
$18.33 - $18.33
$18.33

SVBONY SV219 300mm Black Vixen-Style Dovetail Mounting Plate

SV-W9175C
3 en stock

Functions as a Vixen-Style Dovetail Plate Machined to Vixen Standard Width for broad compatibility Lightweight and rigid Aluminum Construction Dur...

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$18.33 - $18.33
$18.33
$18.33 - $18.33
$18.33
Tele Vue NP127is Bottom Plate 1
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00

Tele Vue NP127is Bottom Plate

TV-BPL-1098

Attaches to Tele Vue MRS-5000 Mounting Rings Pre-drilled for Tele Vue Mounts Includes 1/4"-20 and 3/8"-16 Tripod Sockets Solid Machined Aluminum C...

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$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
Tele Vue Vixen-Tele Vue Mount Adapter 1
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00

Tele Vue Vixen-Tele Vue Mount Adapter

TV-AVT-1011

Connects Tele Vue Telescopes to Vixen Mounts Designed for Vixen Porta, Sphinx, and Great Polaris Mounts Accepts Tele Vue Telescope Cradles Machine...

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$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00

Queue d'aronde série V TS-Optics pour DSLR - 120 mm

TS-PSFotoDel
5 restant!

La platine queue d'aronde TS Optics PSFOTODEL permet de fixer des caméras lourdes, des longues-vues, des téléobjectifs... sur une monture astronom...

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$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00
$36.00 - $38.00
$36.00 - $38.00
$36.00 - $38.00
$36.00

William Optics Série V - Barre à queue d'aronde DSD 110

Options available
5 variants in stock

Plaque DSD 110 par William Optics Fournit une solution de montage sécurisée pour les télescopes et les accessoires Descriptio...

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$36.00 - $38.00
$36.00 - $38.00
$36.00 - $38.00
$36.00
$45.00 - $48.00
$45.00 - $48.00
$45.00 - $48.00
$45.00

William Optics Série V - Barre à queue d'aronde DSD 210

Options available
3 variants in stock

Plaque DSD 210 par William Optics Fournit une solution de montage sécurisée pour les télescopes et les accessoires Description...

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$45.00 - $48.00
$45.00 - $48.00
$45.00 - $48.00
$45.00
$51.76 - $58.00
$51.76 - $58.00
$51.76 - $58.00
$51.76

William Optics Série V - Barre à queue d'aronde DSD 245

Options available
2 variants in stock

Plaque DSD 245 par William Optics Fournit une solution de montage sécurisée pour les télescopes et les accessoires Description...

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$51.76 - $58.00
$51.76 - $58.00
$51.76 - $58.00
$51.76

Dovetail Standards, Length and Stiffness

Two standards dominate, and the difference between them is not just width — it is torsional stiffness, which is what actually stops a heavy tube from twisting under a guiding correction.

  • Vixen-style, approximately 44 mm: Light, near-universal on entry and mid-level mounts, and appropriate for visual loads and small imaging refractors up to a few kilograms.
  • Losmandy-style, approximately 75 mm: Substantially stiffer in torsion, the correct choice for heavy tubes and for imaging where differential flexure would otherwise show in your stars.
  • Length and balance range: A longer bar gives more fore-and-aft adjustment, which matters when adding a heavy camera train shifts the balance point well behind the rings.
  • Slotted versus drilled: Slotted bars allow continuous ring positioning; drilled bars fit specific hole patterns and are usually stiffer for the same mass.
  • Accessory rails: Short bars mounted on top of rings for guide scopes, cameras and finders, keeping accessories on the optical axis rather than cantilevered.
  • Dual-standard plates: Bars machined to fit both saddle types, useful when moving one telescope between mounts.

Why Choose David Astro for Dovetail Plates

Flexure is diagnosed rather than guessed at. We help you find it before you buy a replacement for the wrong component.

  • Saddle compatibility confirmed: We verify what your mount's saddle actually accepts, including dual-fit saddles that grip a narrow bar on its edges rather than its faces.
  • Length sized to your balance: We account for the rearward shift a filter wheel and camera introduce, so you are not left with the rings at the very end of the bar.
  • Machined quality: We stock bars whose dovetail angles are cut accurately enough to seat fully in a saddle, which cheap extruded bars often do not.
  • Authorized dealer: Genuine hardware with manufacturer warranty, stocked domestically and ready to ship.
  • Domestic shipping: Ships from Canada with no duties or brokerage charges for Canadian buyers.

Dovetail Plates in Canada — Frequently Asked Questions

How long a dovetail should I buy?
Long enough that your rings sit near the middle of the bar with the camera attached. If the rings end up at the very front to achieve balance, the bar is too short and you have lost adjustment range.
Is a Losmandy bar overkill for a small refractor?
Often yes, and the extra mass counts against your payload. Below about 7 kg total, a well-machined Vixen bar is usually adequate unless your mount's saddle is Losmandy only.
Can a dovetail cause guiding problems?
Yes. An undersized or poorly seated bar twists under correction, producing errors that look like tracking faults. If guiding degrades at particular tube angles, check the dovetail seating first.
Do you stock bars for specific telescopes?
We carry model-specific bars for many common tubes as well as universal slotted plates. Tell us the telescope and we will confirm the hole pattern.

Sizing a dovetail?

Send us your mount, tube and camera weight and we will specify the bar. Canadian stock, fast domestic shipping.