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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.

Reflectors

No design delivers more aperture for the money than a Newtonian reflector. A mirror is cheaper to make well than a lens, has no chromatic aberration whatsoever, and scales to sizes that would be impossible in glass — which is why almost every large amateur telescope is a reflector. David Astro carries reflectors in Canada, from fast imaging astrographs to large visual Newtonians, stocked in Canada and shipped worldwide.

The trade is collimation and a coma corrector. Both are manageable, and we will be straightforward about what each telescope actually needs.

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$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00

Askar N160 f/3.6 Newtonian

ASK-N160
1 in stock

160mm Aperture Parabolic Mirror f/3.4 Focal Ratio with Included 0.95x Corrector 544mm Corrected Focal Length Carbon Fiber Tube Construction 3.97kg...

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$1,099.00 - $1,099.00
$1,099.00
$1,099.00 - $1,099.00
$1,099.00
$1,299.00 - $1,299.00
$1,299.00
$1,299.00 - $1,299.00
$1,299.00

Celestron Advanced VX 6" Newtonian Telescope

CEL-32054

150mm (6") Newtonian Reflector 750mm Focal Length (f/5) Advanced VX Computerized Equatorial Mount 30 lb Instrument Load Capacity NexStar+ GoTo wit...

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$1,299.00 - $1,299.00
$1,299.00
$1,299.00 - $1,299.00
$1,299.00
$1,599.00 - $1,599.00
$1,599.00
$1,599.00 - $1,599.00
$1,599.00

Celestron Advanced VX 8" Newtonian Telescope

CEL-32062

200mm (7.87") Newtonian Reflector 1000mm Focal Length, f/5 Focal Ratio Advanced VX Computerized GoTo Equatorial Mount 30 lb Instrument Payload Cap...

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$1,599.00 - $1,599.00
$1,599.00
$1,599.00 - $1,599.00
$1,599.00
$599.95 - $599.95
$599.95
$599.95 - $599.95
$599.95

Celestron Astro Fi 130mm Newtonian Telescope

CEL-22203

130mm (5.19") Newtonian Reflector 650mm Focal Length, f/5 Focal Ratio Integrated WiFi for Smartphone/Tablet Control SkyAlign Technology for Fast, ...

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$599.95 - $599.95
$599.95
$599.95 - $599.95
$599.95
$329.95 - $329.95
$329.95
$329.95 - $329.95
$329.95

Celestron AstroMaster 114EQ Telescope

CEL-31042

114mm (4.48") Newtonian Reflector 1000mm focal length (f/8.77) CG-2 Equatorial Mount with manual slow-motion controls Includes 20mm (50x) and 10mm...

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$329.95 - $329.95
$329.95
$329.95 - $329.95
$329.95
$359.95 - $359.95
$359.95
$359.95 - $359.95
$359.95

Celestron AstroMaster 130EQ Telescope

CEL-31045
1 in stock

130mm (5.11") Newtonian Reflector Optics 650mm Focal Length and f/5 Focal Ratio CG-3 Manual German Equatorial Mount Gathers 345x More Light Than t...

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$359.95 - $359.95
$359.95
$359.95 - $359.95
$359.95
$389.95 - $389.95
$389.95
$389.95 - $389.95
$389.95

Celestron AstroMaster 130EQ-MD (Motor Drive) Telescope

CEL-31051

130mm (5.11") Newtonian Reflector 650mm Focal Length, f/5 Focal Ratio CG-3 Equatorial Mount Included Clock Drive for Automatic Tracking 345x Light...

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$389.95 - $389.95
$389.95
$389.95 - $389.95
$389.95
$134.95 - $134.95
$134.95
$134.95 - $134.95
$134.95

Celestron AstroMaster LT 76AZ Telescope

CEL-31036

76mm (2.99") Newtonian Reflector Optics 700mm Focal Length (f/9.21) Manual Alt-Azimuth Mount with Steel Tripod Includes Two Eyepieces for 35x &...

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$134.95 - $134.95
$134.95
$134.95 - $134.95
$134.95
$209.95 - $209.95
$209.95
$209.95 - $209.95
$209.95

Celestron ExploraScope 114AZ Telescope

CEL-22103

114mm (4.5") Newtonian Reflector 1000mm Focal Length (f/9) 265x Light Gathering Power Manual Alt-Azimuth Mount with Clutch Total Kit Weight of 6.7...

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$209.95 - $209.95
$209.95
$209.95 - $209.95
$209.95
$699.95 - $699.95
$699.95
$699.95 - $699.95
$699.95

Celestron NexStar 130SLT Computerized Telescope

CEL-31145

130mm (5.12") Newtonian Reflector 650mm Focal Length, f/5 Focal Ratio Computerized GoTo Mount with 40,000 Object Database SkyAlign Technology for ...

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$699.95 - $699.95
$699.95
$699.95 - $699.95
$699.95
$739.95 - $739.95
$739.95
$739.95 - $739.95
$739.95

Celestron Omni XLT 150 Telescope

CEL-31057

150mm (5.91") Newtonian Reflector 750mm Focal Length (f/5) Omni CG-4 German Equatorial Mount StarBright XLT Optical Coatings 6x30 Optical Findersc...

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$739.95 - $739.95
$739.95
$739.95 - $739.95
$739.95
$4,299.00 - $4,299.00
$4,299.00
$4,299.00 - $4,299.00
$4,299.00

Celestron Origin Mark II - Intelligent Home Observatory

CEL-12100

152mm (6") Rowe-Ackermann Schmidt Astrograph (RASA) Optics Ultra-Fast f/2.2 Focal Ratio for Short Exposures 8.3 Megapixel Sony IMX678 Color CMOS S...

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$4,299.00 - $4,299.00
$4,299.00
$4,299.00 - $4,299.00
$4,299.00
$199.95 - $199.95
$199.95
$199.95 - $199.95
$199.95

Celestron PowerSeeker 114EQ Telescope

CEL-21045

114mm (4.49") Newtonian Reflector 900mm focal length (f/7.89) Manual German Equatorial mount with slow-motion controls Gathers 265x more light tha...

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$199.95 - $199.95
$199.95
$199.95 - $199.95
$199.95
$229.95 - $229.95
$229.95
$229.95 - $229.95
$229.95

Celestron PowerSeeker 127EQ Telescope

CEL-21049
4 in stock

127mm (5") Newtonian Reflector 1000mm Focal Length f/7.87 Focal Ratio Manual German Equatorial Mount Includes 50x and 250x Eyepieces 3x Barlow Len...

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$229.95 - $229.95
$229.95
$229.95 - $229.95
$229.95
$499.95 - $499.95
$499.95
$499.95 - $499.95
$499.95

Celestron StarSense Explorer™ DX 130AZ Smartphone App-Enabled Newtonian Reflector Telescope

CEL-22461

130mm (5.11") Newtonian Reflector with Parabolic Primary Mirror StarSense Explorer app uses your smartphone for real-time sky recognition 650mm fo...

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$499.95 - $499.95
$499.95
$499.95 - $499.95
$499.95
$259.95 - $259.95
$259.95
$259.95 - $259.95
$259.95

Celestron StarSense Explorer™ LT 114AZ Smartphone App-Enabled Newtonian Reflector Telescope

CEL-22452

114mm (4.5") Newtonian Reflector optics 1000mm focal length (f/9) for high-contrast planetary views Patented StarSense Explorer app guides you to ...

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$259.95 - $259.95
$259.95
$259.95 - $259.95
$259.95
Explore Scientific 114mm Newtonian Reflector Telescope with Equatorial Mount
$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99

Explore Scientific 114mm Newtonian Reflector Telescope with Equatorial Mount

ES-ON11444EQ3
1 in stock

114mm (4.5") primary mirror gathers ample light for planets and bright deep-sky objects Fast f/4.4 focal ratio provides expansive, wide-field view...

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$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99
Explore Scientific 6-inch Dobsonian Reflector Telescope
$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99

Explore Scientific 6-inch Dobsonian Reflector Telescope

ES-ON15476

154mm (6-inch) Primary Mirror 1170mm Focal Length f/7.6 Focal Ratio 2-inch Crayford-style Focuser with 1.25-inch Adapter Dobsonian Mount with Spri...

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$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific FirstLight 114mm Newtonian with EQ3 Mount

ES-FL-N114500EQ3
2 in stock

114mm (4.5") Newtonian Reflector Optics Stable EQ3-Class German Equatorial Mount Full-Size Tripod with Accessory Tray Includes Plössl Eyepiece and...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
Explore Scientific Sidara Essential 130 Telescope
$399.99 - $399.99
$399.99
$399.99 - $399.99
$399.99

Explore Scientific Sidara Essential 130 Telescope

ES-N130650-MAZ01-ST10

130mm (5.1") Newtonian Reflector Optics 650mm Focal Length (f/5) Essential Alt-Azimuth Mount Dual-Axis Slow-Motion Controls Integrated SkyAssist N...

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$399.99 - $399.99
$399.99
$399.99 - $399.99
$399.99
Explore Scientific Sidara Nano 114 Telescope
$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99

Explore Scientific Sidara Nano 114 Telescope

ES-N114500-MAZ-NANO

114mm Newtonian Reflector Optics Lightweight Nano Alt-Azimuth Mount Slow-Motion Controls for Precise Tracking Integrated SkyAssist Navigation Aid ...

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$199.99 - $199.99
$199.99
$199.99 - $199.99
$199.99
Explore Scientific Sidara Plus 150 Reflector Telescope
$699.99 - $699.99
$699.99
$699.99 - $699.99
$699.99

Explore Scientific Sidara Plus 150 Reflector Telescope

ES-N150750-MAZ01

150mm Newtonian Reflector 750mm Focal Length (f/5) Nano Alt-Azimuth Mount Smooth Slow-Motion Controls SkyAssist Navigation Aid Description FAQ ...

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$699.99 - $699.99
$699.99
$699.99 - $699.99
$699.99
$458.00 - $458.00
$458.00
$458.00 - $458.00
$458.00

iOptron 150mm f/4 Imaging Newtonian

IOP-6311

150mm (6") Newtonian Reflector 600mm Focal Length Fast f/4 Focal Ratio 10:1 Dual-Speed Crayford Focuser OTA Weight: 9 lbs. 10 oz. Description F...

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$458.00 - $458.00
$458.00
$458.00 - $458.00
$458.00
$628.00 - $628.00
$628.00
$628.00 - $628.00
$628.00

iOptron 200mm f/4 Imaging Newtonian

IOP-6312

200mm (8") Newtonian Reflector 800mm Focal Length Fast f/4 Focal Ratio 10:1 Dual-Speed Crayford Focuser OTA Weight: 20 lbs 6 oz Description FAQ...

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$628.00 - $628.00
$628.00
$628.00 - $628.00
$628.00

Newtonian Design and What It Demands

A parabolic primary and a flat diagonal secondary. Simple, efficient, and with two characteristics you have to work with rather than around.

  • Focal ratio and its consequences: Fast Newtonians around f/4 give wide bright fields for imaging but demand precise collimation and a coma corrector. Slower f/6 to f/8 designs are far more forgiving.
  • Coma: Off-axis stars take a comet shape, inherent to a parabolic mirror and increasingly obvious as focal ratio drops. A coma corrector is effectively mandatory below f/6 for imaging.
  • Collimation: Mirror alignment shifts with transport and temperature. Fast scopes need checking each session; slower ones hold for weeks.
  • Central obstruction: The secondary mirror reduces contrast slightly. Imaging Newtonians use larger secondaries to fully illuminate a sensor; visual designs minimize them.
  • Cooling: A large mirror stores heat and produces a boundary layer that softens detail until it equalizes. Rear fans reduce the wait considerably on Canadian nights.
  • Dobsonian mounting: The most practical way to support a large Newtonian for visual use, at a fraction of an equatorial's cost.

Why Choose David Astro for Reflectors

A reflector is excellent value provided you are set up to maintain it, and we would rather tell you that beforehand.

  • Collimation expectations set honestly: We tell you how often your specific focal ratio needs checking and recommend a tool that matches, so it is a two-minute routine rather than a chore.
  • Coma corrector specified with the tube: For imaging Newtonians we supply the corrector and its spacing alongside the telescope, since the field is unusable without it.
  • Focuser assessment: Stock focusers on fast Newtonians often cannot hold an imaging train squarely, and we will say when an upgrade is genuinely required.
  • Authorized dealer: Full manufacturer warranty and verified authenticity, with service in Canada.
  • Ships from Canada: Large optics delivered domestically with no duties or brokerage fees.

Reflectors in Canada — Frequently Asked Questions

How often will I need to collimate?
An f/4 imaging Newtonian benefits from a check every session. An f/6 visual scope typically holds alignment for weeks unless transported roughly. It takes about two minutes once you are practised.
Do I need a coma corrector?
For imaging below about f/6, yes — corner stars will show obvious coma otherwise. For visual use at f/5 and slower most observers are untroubled, though a corrector does improve the edge.
How long does a mirror take to cool?
A 200 mm mirror moved from a warm house to a Canadian winter night typically needs 45 minutes or more. A rear-mounted fan blowing across the mirror face reduces that substantially.
Are reflectors good for planets?
Yes, given aperture and good collimation. A well-collimated 200 mm Newtonian shows excellent planetary detail; the central obstruction costs a little contrast that extra aperture more than repays.

Considering a Newtonian?

Tell us whether it is for visual or imaging and we will specify the tube, corrector and tools. Canadian stock, worldwide shipping.