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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Dobsoniens

The Dobsonian is the most efficient answer ever devised to a simple question: how do you point a very large mirror at the sky without spending more on the mount than the optics? A simple altazimuth box, a large primary, and nothing else — which is why a 300 mm Dobsonian costs a fraction of a 300 mm equatorial system. David Astro carries Dobsonians in Canada, stocked domestically and ready to ship.

Aperture is the point, and transport is the constraint. Tell us your vehicle, your storage space and who will carry it, and we will recommend an aperture you will actually use.

Filtres

$74.95 - $74.95
$74.95
$74.95 - $74.95
$74.95

Celestron FirstScope 76mm Signature Series Moon par Robert Reeves

CEL-22016

Caractéristiques Le télescope d'entrée de gamme bien-aimé de Celestron a un look époustouflant ! Le FirstScope de la série Signature présente une...

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$74.95 - $74.95
$74.95
$74.95 - $74.95
$74.95
$1,599.00 - $1,599.00
$1,599.00
$1,599.00 - $1,599.00
$1,599.00

Télescope Dobsonien compatible avec l'application pour smartphone Celestron StarSense Explorer 12"

CEL-22472
1 en stock

Caractéristiques Libérez la puissance de votre smartphone pour vous emmener dans une visite guidée du ciel nocturne, aucune expérience de tél...

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$1,599.00 - $1,599.00
$1,599.00
$1,599.00 - $1,599.00
$1,599.00
$379.95 - $379.95
$379.95
$379.95 - $379.95
$379.95

Télescope Dobsonien de table Celestron StarSense Explorer™ 114 mm compatible avec une application pour smartphone

CEL-22480
1 en stock

Caractéristiques Libérez la puissance de votre smartphone pour vous emmener dans une visite guidée du ciel nocturne, aucune expérience de tél...

Afficher tous les détails
$379.95 - $379.95
$379.95
$379.95 - $379.95
$379.95
$479.95 - $479.95
$479.95
$479.95 - $479.95
$479.95

Télescope Dobsonien de table Celestron StarSense Explorer™ 130 mm compatible avec une application pour smartphone

CEL-22481

Caractéristiques Libérez la puissance de votre smartphone pour vous emmener dans une visite guidée du ciel nocturne, aucune expérience de tél...

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$479.95 - $479.95
$479.95
$479.95 - $479.95
$479.95
$599.95 - $599.95
$599.95
$599.95 - $599.95
$599.95

Télescope Dobsonien de table Celestron StarSense Explorer™ 150 mm compatible avec une application pour smartphone

CEL-22482

Caractéristiques Libérez la puissance de votre smartphone pour vous emmener dans une visite guidée du ciel nocturne, aucune expérience de tél...

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$599.95 - $599.95
$599.95
$599.95 - $599.95
$599.95
$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00

Télescope Dobson Celestron StarSense Explorer™ compatible avec application pour smartphone - 10"

CEL-22471

Caractéristiques Libérez la puissance de votre smartphone pour vous emmener dans une visite guidée du ciel nocturne - aucune expérience de télesc...

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$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00
$879.00 - $879.00
$879.00
$879.00 - $879.00
$879.00

Télescope Dobson pour Smartphone Celestron StarSense Explorer™ - 8"

CEL-22470

Caractéristiques Libérez la puissance de votre smartphone pour vous emmener dans une visite guidée du ciel nocturne - aucune expérience de téles...

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$879.00 - $879.00
$879.00
$879.00 - $879.00
$879.00
Explore Scientific 10-inch f/5 Hybrid Truss Tube Dobsonian Telescope
$899.99 - $899.99
$899.99
$899.99 - $899.99
$899.99

Explore Scientific 10-inch f/5 Hybrid Truss Tube Dobsonian Telescope

ES-DOB1045C

254mm (10-inch) Aperture f/5 Newtonian Optical Design Hybrid Truss Tube for Portability Includes 25mm and 10mm Plössl Eyepieces Red-Dot Finder and...

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$899.99 - $899.99
$899.99
$899.99 - $899.99
$899.99
Explore Scientific 6-inch Tabletop Dobsonian Reflector Telescope
$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99

Explore Scientific 6-inch Tabletop Dobsonian Reflector Telescope

ES-ON15205TT

152mm (6-inch) primary mirror for bright, detailed views Fast f/5 focal ratio provides a wide field of view Lightweight and compact tabletop Dobso...

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$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99
Explore Scientific 8-inch Dobsonian Reflector Telescope (Red)
$699.99 - $699.99
$699.99
$699.99 - $699.99
$699.99

Explore Scientific 8-inch Dobsonian Reflector Telescope (Red)

ES-ON20859RR

208mm (8-inch) Primary Mirror 1219mm Focal Length f/5.9 Focal Ratio 2-inch Crayford-style Focuser with 1.25-inch Adapter Dobsonian-style Mount Inc...

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$699.99 - $699.99
$699.99
$699.99 - $699.99
$699.99
Orion Optics UK 150mm Dobsonian Mount
$293.81 - $293.81
$293.81
$593.81
$593.81 - $593.81
$593.81

Orion Optics UK 150mm Dobsonian Mount

OOUK-150MM-DOBSONIAN-MOUNT-ACCEOTS-TUBES

Designed for 150mm Newtonian Telescopes Classic Dobsonian Alt-Azimuth Design Intuitive Point-and-View Operation Stable, Ground-Based Platform Manu...

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$293.81 - $293.81
$293.81
$593.81
$593.81 - $593.81
$593.81
Orion Optics UK 200mm Dobsonian Mount
$349.73 - $349.73
$349.73
$649.73
$649.73 - $649.73
$649.73

Orion Optics UK 200mm Dobsonian Mount

OOUK-200MM-DOBSONIAN-MOUNT-ACCEOTS-TUBES

Designed for 200mm (8-inch) Newtonian Telescopes Accepts Optical Tubes up to 225mm in Diameter Classic Dobsonian Rocker-Box Design Provides a Stab...

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$349.73 - $349.73
$349.73
$649.73
$649.73 - $649.73
$649.73
Orion Optics UK 250mm Dobsonian Mount
$357.72 - $357.72
$357.72
$657.72
$657.72 - $657.72
$657.72

Orion Optics UK 250mm Dobsonian Mount

OOUK-250MM-DOBSONIAN-MOUNT-ACCEOTS-TUBES

Designed for 250mm (10-inch) class Newtonian telescopes Accepts optical tubes with an outer diameter up to 280mm Classic Dobsonian rocker box desi...

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$357.72 - $357.72
$357.72
$657.72
$657.72 - $657.72
$657.72
Orion Optics UK 300mm Dobsonian Mount
$453.61 - $453.61
$453.61
$753.61
$753.61 - $753.61
$753.61

Orion Optics UK 300mm Dobsonian Mount

OOUK-300MM-DOBSONIAN-MOUNT-ACCEOTS-TUBES

Designed for Optical Tubes up to 236mm in Diameter Classic Dobsonian Alt-Azimuth Design Provides a Stable, Vibration-Free Platform Ideal for High-...

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$453.61 - $453.61
$453.61
$753.61
$753.61 - $753.61
$753.61
Orion Optics UK 350mm Dobsonian Mount
$613.40 - $613.40
$613.40
$913.40
$913.40 - $913.40
$913.40

Orion Optics UK 350mm Dobsonian Mount

OOUK-350MM-DOBSONIAN-MOUNT-ACCEOTS-TUBES

Accommodates large Newtonian optical tubes Designed for 350mm class telescopes Accepts tube diameters up to 385mm Classic Dobsonian alt-azimuth de...

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$613.40 - $613.40
$613.40
$913.40
$913.40 - $913.40
$913.40
Orion Optics UK 400mm Dobsonian Mount
$877.06 - $877.06
$877.06
$1,177.06
$1,177.06 - $1,177.06
$1,177.06

Orion Optics UK 400mm Dobsonian Mount

OOUK-400MM-DOBSONIAN-MOUNT-ACCEOTS-TUBES

Designed for 400mm Newtonian Optical Tubes Accepts Tube Diameters up to 434mm Classic Dobsonian Rocker Box Design Provides a Stable, Vibration-Fre...

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$877.06 - $877.06
$877.06
$1,177.06
$1,177.06 - $1,177.06
$1,177.06
$515.00 - $515.00
$515.00
$515.00 - $515.00
$515.00

Sky-Watcher Classique 150P

SW-S11600
1 en stock

Le télescope Dobson classique Sky-Watcher 153 mm/1200 mm (6") est doté d'un miroir primaire "paraboloïdal" pour éliminer l'aberration sphérique et...

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$515.00 - $515.00
$515.00
$515.00 - $515.00
$515.00
$725.00 - $725.00
$725.00
$725.00 - $725.00
$725.00

Sky-Watcher Classic 200P

SW-S11610

Le télescope Dobson classique Sky-Watcher 203 mm/1200 mm (8") est doté d'un miroir primaire "paraboloïdal" pour éliminer l'aberration sphérique et...

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$725.00 - $725.00
$725.00
$725.00 - $725.00
$725.00
$995.00 - $995.00
$995.00
$995.00 - $995.00
$995.00

Sky-Watcher Classic 250P

SW-S11620

Le télescope Dobson classique Sky-Watcher 254 mm/1200 mm (10") est doté d'un miroir primaire "paraboloïdal" pour éliminer l'aberration sphérique e...

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$995.00 - $995.00
$995.00
$995.00 - $995.00
$995.00
$850.00 - $850.00
$850.00
$850.00 - $850.00
$850.00

Sky-Watcher Flextube 200P

SW-S11700
1 en stock

Sky-Watcher 8" DOB - Rejoignez les rangs des observateurs sérieux Correspondant à la "fièvre de l'ouverture" croissante qui s'est emparée de l'as...

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$850.00 - $850.00
$850.00
$850.00 - $850.00
$850.00
$1,625.00 - $1,625.00
$1,625.00
$1,625.00 - $1,625.00
$1,625.00

Sky-Watcher Flextube 200P SynScan

SW-S11800
2 en stock

La nouvelle série passionnante Sky-Watcher Dobsonian SynScan est un instrument de précision qui vous permettra de trouver et de profiter facilemen...

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$1,625.00 - $1,625.00
$1,625.00
$1,625.00 - $1,625.00
$1,625.00
$1,150.00 - $1,150.00
$1,150.00
$1,150.00 - $1,150.00
$1,150.00

Sky-Watcher Flextube 250P

SW-S11720

Le Sky-Watcher 10" DOB : le point idéal pour l'ouverture et la valeur ! Il s'agit d'un grand cheval sympathique d'un télescope avec lequel vous po...

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$1,150.00 - $1,150.00
$1,150.00
$1,150.00 - $1,150.00
$1,150.00
$1,895.00 - $1,895.00
$1,895.00
$1,895.00 - $1,895.00
$1,895.00

Sky-Watcher Flextube 250P SynScan

SW-S11810
1 en stock

La nouvelle série passionnante Sky-Watcher Dobsonian SynScan est un instrument de précision qui vous permettra de trouver et de profiter facilemen...

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$1,895.00 - $1,895.00
$1,895.00
$1,895.00 - $1,895.00
$1,895.00
$1,895.00 - $1,895.00
$1,895.00
$1,895.00 - $1,895.00
$1,895.00

Sky-Watcher Flextube 300P

SW-S11740

Sky-Watcher 12" DOB : héros de l'espace lointain ! Le Sky-Watcher 12" DOB est un gros canon. Si vous visez des flous de 12ème magnitude bien réso...

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$1,895.00 - $1,895.00
$1,895.00
$1,895.00 - $1,895.00
$1,895.00

Dobsonian Designs and Practical Aperture

The biggest telescope you own is worth less than the biggest telescope you set up. Design choices here are mostly about making aperture manageable.

  • Solid-tube Dobsonians: Simplest and most rigid, holding collimation well. Beyond about 250 mm the tube becomes awkward to lift and transport as one piece.
  • Collapsible truss designs: Struts that retract or disassemble, reducing a large telescope to two manageable components — the practical route to 300 mm and beyond.
  • GoTo and push-to Dobsonians: Encoder-based systems that direct you to targets, valuable under light-polluted skies where star hopping fails for lack of visible guide stars.
  • Tracking platforms: Equatorial platforms that track for an hour or so beneath a Dobsonian, allowing high magnification and short-exposure imaging.
  • Base movement quality: Smooth altitude and azimuth motion determines whether high magnification is pleasant or frustrating; bearings and tension adjustment matter more than they look.
  • Collimation: Faster large Dobsonians need checking each session, which takes about two minutes with the right tool.

Why Choose David Astro for Dobsonians

Aperture is easy to over-buy, and a telescope that stays in a garage shows nothing.

  • Transport reality checked: We ask what vehicle you have, how far you carry it and whether stairs are involved, because these determine your practical maximum aperture.
  • Cooling advice for winter: A large mirror moved from a warm house shows soft images for the first hour. We discuss fans and staging so your first hour is not wasted.
  • Eyepiece set matched to focal ratio: Fast Dobsonians demand more of eyepieces at the field edge, and we recommend accordingly rather than selling premium glass you do not need.
  • Authorized dealer: Full manufacturer warranty with support handled in Canada.
  • Ships from Canada: Large items delivered domestically with no duties or brokerage fees.

Dobsonians in Canada — Frequently Asked Questions

What size Dobsonian should I get?
The largest you will comfortably move and set up alone. For most people that is 200 to 250 mm solid tube, or 300 mm and up in a collapsible design. A 200 mm used often beats a 400 mm used rarely.
Can I image with a Dobsonian?
Lunar and planetary work is very achievable with short video captures. Deep-sky imaging needs an equatorial platform, and even then exposure lengths are limited. Dobsonians are visual instruments first.
How much does light pollution matter?
Enormously for deep sky. Aperture helps with globular clusters and planetary nebulae under city skies, but galaxies and faint nebulae need dark sites regardless of aperture. A filter helps on emission nebulae only.
Do I need GoTo?
Under suburban skies it saves considerable frustration since few guide stars are visible for star hopping. Under dark skies many observers find manual navigation part of the enjoyment.

Choosing an aperture?

Tell us your vehicle and storage and we will recommend a size you will actually use. Canadian stock, no surprise duties.