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Montures équatoriales

An equatorial mount aligns one axis with the Earth's rotation, so a single motor at sidereal rate holds a target still indefinitely and the field does not rotate. That single geometric fact is why every long-exposure deep-sky image is made on one. David Astro stocks equatorial mounts in Canada, from portable German equatorials to observatory-class heads, shipped domestically.

Polar alignment accuracy, payload margin and periodic error are the three variables that decide your results. Tell us your optic and focal length and we will size the mount against all three.

Filtres

CA$1,528.00 - CA$1,528.00
CA$1,528.00
CA$1,528.00 - CA$1,528.00
CA$1,528.00

Celestron Advanced VX Monture et Trépied

CEL-91519

Caractéristiques La plus compacte et la plus portable des montures équatoriales allemandes de Celestron offre la même rigidité que nos montures p...

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CA$1,528.00 - CA$1,528.00
CA$1,528.00
CA$1,528.00 - CA$1,528.00
CA$1,528.00
CA$2,640.00 - CA$2,640.00
CA$2,640.00
CA$2,640.00 - CA$2,640.00
CA$2,640.00

Celestron CGEM II Monture et Trépied

CEL-91523

Caractéristiques Capacité de charge utile de 40 lb Selle à queue d'aronde Vixen/CG-5 et Losmandy/CGE à double ajustement Pieds en acier de 2" a...

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CA$2,640.00 - CA$2,640.00
CA$2,640.00
CA$2,640.00 - CA$2,640.00
CA$2,640.00
CA$3,752.00 - CA$3,752.00
CA$3,752.00
CA$3,752.00 - CA$3,752.00
CA$3,752.00

Celestron CGX Monture et Trépied

CEL-91530
1 en stock

Caractéristiques Capacité de charge accrue à 55 lb Le système d'entraînement par courroie à usage intensif minimise le jeu tout en assurant un f...

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CA$3,752.00 - CA$3,752.00
CA$3,752.00
CA$3,752.00 - CA$3,752.00
CA$3,752.00
CA$5,976.00 - CA$5,976.00
CA$5,976.00
CA$5,976.00 - CA$5,976.00
CA$5,976.00

Celestron CGX-L Monture et Trépied

CEL-91531

Caractéristiques Capacité de charge accrue de 75 lb. Rapport poids/capacité de charge exceptionnel Ports d'accessoires auxiliaires supplémentai...

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CA$5,976.00 - CA$5,976.00
CA$5,976.00
CA$5,976.00 - CA$5,976.00
CA$5,976.00
CA$4,864.00 - CA$4,864.00
CA$4,864.00
CA$4,864.00 - CA$4,864.00
CA$4,864.00

Celestron CGX-L Monture sans Trépied

CEL-91532

Caractéristiques Capacité de charge accrue de 75 lb. Rapport poids/capacité de charge exceptionnel Ports d'accessoires auxiliaires supplémentair...

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CA$4,864.00 - CA$4,864.00
CA$4,864.00
CA$4,864.00 - CA$4,864.00
CA$4,864.00
CA$584.00 - CA$584.00
CA$584.00
CA$584.00 - CA$584.00
CA$584.00

Celestron Omni CG-4 Monture et Trépied

CEL-91509

Caractéristiques Monture équatoriale allemande et trépied fournis avec tous les télescopes de la série Omni XLT Comprend des commandes de ralent...

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CA$584.00 - CA$584.00
CA$584.00
CA$584.00 - CA$584.00
CA$584.00
CA$209.99 - CA$209.99
CA$209.99
CA$209.99 - CA$209.99
CA$209.99

Explore Scientific Monture FirstLight EXOS Nano

ES-FL-EXOSNANOT1-00

Explorez le support de tête équatoriale et le trépied allemands Scientific FirstLight EXOS Nano ; trépied ST1 en acier robuste de 1,25 po avec pi...

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CA$209.99 - CA$209.99
CA$209.99
CA$209.99 - CA$209.99
CA$209.99
Explore Scientific iEXOS-100-02 HD PMC-Eight Equatorial Tracker System
CA$980.00 - CA$980.00
CA$980.00
CA$980.00 - CA$980.00
CA$980.00

Explore Scientific iEXOS-100-02 HD PMC-Eight Equatorial Tracker System

ES-iEXOS100-ET

PMC-Eight™ GoTo System German Equatorial Mount Design Wireless and Wired Control via App or ASCOM Includes Illuminated Polar Finder Scope Includes...

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CA$980.00 - CA$980.00
CA$980.00
CA$980.00 - CA$980.00
CA$980.00
CA$7,909.00 - CA$13,397.00
CA$7,909.00 - CA$13,397.00
CA$7,909.00 - CA$13,397.00
CA$7,909.00

Monture iOptron CEM120

Options available

Caractéristiques Une nouvelle conception, une monture équatoriale à équilibrage central (CEM) pour une charge utile maximale avec une stabilité n...

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CA$7,909.00 - CA$13,397.00
CA$7,909.00 - CA$13,397.00
CA$7,909.00 - CA$13,397.00
CA$7,909.00
CA$1,817.00 - CA$4,437.00
CA$1,817.00 - CA$4,437.00
CA$1,817.00 - CA$4,437.00
CA$1,817.00

Monture iOptron CEM26

Options available
1 variants in stock

Caractéristiques Conception unique, monture équatoriale à équilibrage central (CEM) pour une charge utile maximale et un poids de montage minima...

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CA$1,817.00 - CA$4,437.00
CA$1,817.00 - CA$4,437.00
CA$1,817.00 - CA$4,437.00
CA$1,817.00
iOptron CEM40 Mount - CEM40 Head Only w/ iPolar & Case
CA$3,625.00 - CA$6,159.00
CA$3,625.00 - CA$6,159.00
CA$3,625.00 - CA$6,159.00
CA$3,625.00

Monture iOptron CEM40

Options available

Caractéristiques Conception unique, monture équatoriale équilibrée au centre (CEM) pour une charge utile maximale et un poids de montage minimal ...

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CA$3,625.00 - CA$6,159.00
CA$3,625.00 - CA$6,159.00
CA$3,625.00 - CA$6,159.00
CA$3,625.00
iOptron CEM70 Mount - CEM70EC w/ iPolar, WiFi & USB3
CA$4,701.00 - CA$9,995.00
CA$4,701.00 - CA$9,995.00
CA$4,701.00 - CA$9,995.00
CA$4,701.00

Monture iOptron CEM70

Options available
1 variants in stock

Caractéristiques Une nouvelle conception, une monture équatoriale à équilibrage central (CEM) pour une charge utile maximale avec une stabilité n...

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CA$4,701.00 - CA$9,995.00
CA$4,701.00 - CA$9,995.00
CA$4,701.00 - CA$9,995.00
CA$4,701.00
CA$1,887.00 - CA$4,521.00
CA$1,887.00 - CA$4,521.00
CA$1,887.00 - CA$4,521.00
CA$1,887.00

Monture iOptron GEM28

Options available
1 variants in stock

Caractéristiques Conception équatoriale allemande, plage de latitude de 10° ~ 70° Idéal pour l'observation visuelle et l'astrophotographie Fai...

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CA$1,887.00 - CA$4,521.00
CA$1,887.00 - CA$4,521.00
CA$1,887.00 - CA$4,521.00
CA$1,887.00
iOptron GEM45 Mount - GEM45 Head Only w/ iPolar & Case
CA$3,695.00 - CA$6,229.00
CA$3,695.00 - CA$6,229.00
CA$3,695.00 - CA$6,229.00
CA$3,695.00

Monture iOptron GEM45

Options available
1 variants in stock

Caractéristiques Monture équatoriale allemande aux caractéristiques innovantes Idée pour l'observation visuelle et l'astrophotographie Charge ...

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CA$3,695.00 - CA$6,229.00
CA$3,695.00 - CA$6,229.00
CA$3,695.00 - CA$6,229.00
CA$3,695.00
CA$1,957.00 - CA$1,957.00
CA$1,957.00
CA$1,957.00 - CA$1,957.00
CA$1,957.00

iOptron HAE16C AZ/EQ Dual SWG

IOP-HE162C

Hybrid EQ/Alt-Az Mount Design 18 lbs (8.2 kg) Payload without Counterweight 5.7 lbs (2.6 kg) Mount Head Weight StrainWave RA Gear & Worm/Belt ...

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CA$1,957.00 - CA$1,957.00
CA$1,957.00
CA$1,957.00 - CA$1,957.00
CA$1,957.00
iOptron HAE18C AZ/EQ Dual Strain Wave GoTo Mount
CA$2,309.00 - CA$2,309.00
CA$2,309.00
CA$2,309.00 - CA$2,309.00
CA$2,309.00

iOptron HAE18C AZ/EQ Dual Strain Wave GoTo Mount

IOP-HE182C

Payload (without counterweight): 18.7 lbs (8.5 kg) Mount Head Weight: 6.2 lbs (2.82 kg) Payload-to-Weight Ratio: 3.01 Drive System: Dual Strain Wa...

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CA$2,309.00 - CA$2,309.00
CA$2,309.00
CA$2,309.00 - CA$2,309.00
CA$2,309.00
iOptron HAE29 Dual AZ/EQ SWG Mount - HAE29C
CA$2,797.00 - CA$5,459.00
CA$2,797.00 - CA$5,459.00
CA$2,797.00 - CA$5,459.00
CA$2,797.00

iOptron HAE29 Support SWG double AZ/EQ

Options available

Présentation des nouveaux membres de la famille de montages d'engrenages à ondes de contrainte iOptron - AZ/EQ double montage HAE29 et HAE29 EC ! C...

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CA$2,797.00 - CA$5,459.00
CA$2,797.00 - CA$5,459.00
CA$2,797.00 - CA$5,459.00
CA$2,797.00
iOptron HAE43 Dual AZ/EQ SWG Mount - HAE43C
CA$3,917.00 - CA$6,845.00
CA$3,917.00 - CA$6,845.00
CA$3,917.00 - CA$6,845.00
CA$3,917.00

iOptron HAE43 Support SWG double AZ/EQ

Options available

Présentation des nouveaux membres de la famille de montages d'engrenages à ondes de contrainte iOptron - AZ/EQ double montage HAE43 et HAE43 EC ! C...

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CA$3,917.00 - CA$6,845.00
CA$3,917.00 - CA$6,845.00
CA$3,917.00 - CA$6,845.00
CA$3,917.00
iOptron HAE69 Dual AZ/EQ SWG Mount - HAE69C
CA$5,387.00 - CA$8,525.00
CA$5,387.00 - CA$8,525.00
CA$5,387.00 - CA$8,525.00
CA$5,387.00

iOptron HAE69 Double monture AZ/EQ SWG

Options available

Présentation des nouveaux membres de la famille de montage iOptron à engrenages à ondes de contrainte (SWG) - HAE69 et HAE69 EC Monture double SWG ...

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CA$5,387.00 - CA$8,525.00
CA$5,387.00 - CA$8,525.00
CA$5,387.00 - CA$8,525.00
CA$5,387.00
CA$2,937.00 - CA$2,937.00
CA$2,937.00
CA$2,937.00 - CA$2,937.00
CA$2,937.00

iOptron HAZ31 Onde de contrainte Alt-Az

HZ312

Deux nouveaux supports d'onde de contrainte Alt-Az passionnants, HAZ31 et HAZ46, sont ajoutés à la famille de supports d'engrenage à onde de contra...

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CA$2,937.00 - CA$2,937.00
CA$2,937.00
CA$2,937.00 - CA$2,937.00
CA$2,937.00
CA$3,989.00 - CA$3,989.00
CA$3,989.00
CA$3,989.00 - CA$3,989.00
CA$3,989.00

iOptron HAZ46 Alt-Az Strain Wave Mount

IOP-HZ462

Deux nouveaux supports d'onde de contrainte Alt-Az passionnants, HAZ31 et HAZ46, sont ajoutés à la famille de supports d'engrenage à onde de contra...

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CA$3,989.00 - CA$3,989.00
CA$3,989.00
CA$3,989.00 - CA$3,989.00
CA$3,989.00
CA$2,085.00 - CA$2,309.00
CA$2,085.00 - CA$2,309.00
CA$2,085.00 - CA$2,309.00
CA$2,085.00

Monture SWG hybride iOptron HEM15

Options available

Présentation du HEM15 , le dernier ajout aux supports révolutionnaires d'entraînement à ondes de contrainte hybrides d'iOptron. Ces petits titans ...

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CA$2,085.00 - CA$2,309.00
CA$2,085.00 - CA$2,309.00
CA$2,085.00 - CA$2,309.00
CA$2,085.00
iOptron HEM27 Mount - HEM27EC Mount
CA$2,797.00 - CA$4,983.00
CA$2,797.00 - CA$4,983.00
CA$2,797.00 - CA$4,983.00
CA$2,797.00

Monture iOptron HEM27

Options available

Présentation du HEM27 et du HEM27 EC , les supports d'entraînement harmonique hybrides révolutionnaires d'iOptron. Ces minuscules titans légers et...

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CA$2,797.00 - CA$4,983.00
CA$2,797.00 - CA$4,983.00
CA$2,797.00 - CA$4,983.00
CA$2,797.00
CA$4,087.00 - CA$6,383.00
CA$4,087.00 - CA$6,383.00
CA$4,087.00 - CA$6,383.00
CA$4,087.00

Monture iOptron HEM44

Options available

La liberté des contrepoids et de l'arbre encombrants est ici ! Présentation du HEM44 et du HEM44 EC , les derniers supports d'entraînement à ondes...

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CA$4,087.00 - CA$6,383.00
CA$4,087.00 - CA$6,383.00
CA$4,087.00 - CA$6,383.00
CA$4,087.00

Equatorial Mount Design and Performance

Every equatorial mount does the same job. What varies is how precisely it does it under load, and how much of the remaining error can be corrected.

  • German equatorial layout: Counterweighted design that balances any tube on the same head, requiring a meridian flip as targets cross south — which automation software handles routinely.
  • Polar alignment: Determines residual field rotation and drift. For long exposures, alignment accuracy matters more than mount cost above a certain point.
  • Periodic error: Cyclical tracking error from the worm gear, measured in arcseconds. Its smoothness matters as much as its amplitude, since smooth error guides out cleanly.
  • Belt drives: Replace gear meshing with toothed belts, reducing backlash and high-frequency error — a common upgrade path and a standard feature on newer mounts.
  • Encoders and PEC: Periodic error correction replays a learned curve; encoders measure and correct actual shaft position in real time, which is considerably more effective.
  • Balance and counterweights: Correct balance in both axes reduces motor load and is one of the cheapest ways to improve guiding.

Why Choose David Astro for Equatorial Mounts

The specification that matters is not on the box, so ask someone who has used the mount.

  • Guiding-realistic payload sizing: We recommend loading to 50 to 60% of the visual rating for imaging, and we will explain why a mount that carries your tube may still not guide it well.
  • Polar alignment planning: We advise on alignment method for your site, including electronic alignment when Polaris is blocked, which is common in urban backyards.
  • Meridian clearance checked: We calculate whether your tube will strike the tripod at the meridian and specify a pier extension if it will.
  • Authorized dealer: Full manufacturer warranty with diagnostics and service handled in Canada.
  • Domestic freight: Heavy mounts ship from Canadian stock with no duties or brokerage fees for Canadian buyers.

Equatorial Mounts in Canada — Frequently Asked Questions

How accurate does polar alignment need to be?
For guided imaging, within a few arcminutes is generally sufficient — guiding handles the rest. For unguided or very long focal length work, aim for under one arcminute, which electronic alignment achieves quickly.
What is a meridian flip and does it matter?
A German equatorial must swap sides as a target crosses south, which rotates your framing 180 degrees and interrupts guiding. Automation software handles it, but you must plan for the pause and re-centring.
Is periodic error correction enough without guiding?
Rarely, for long exposures. PEC reduces the repeatable component but not drift, flexure or seeing. Guiding or encoders remain necessary for consistent sub-exposures beyond a couple of minutes.
Can I upgrade an existing mount to belt drive?
For several common mounts, yes, and it is a worthwhile improvement to backlash and high-frequency error. Tell us the model and we will confirm whether a kit exists.

Sizing an equatorial mount?

Tell us your tube, camera and focal length and we will recommend with guiding margin. Full warranty, shipped from Canada.