Telescopes
There is no best telescope, only the telescope that matches your sky, your targets and how much you are willing to carry. A fast apochromatic refractor and a large Dobsonian are both excellent instruments and almost nothing alike in use. David Astro stocks telescopes in Canada — refractors, reflectors, Dobsonians, Schmidt-Cassegrains, Maksutovs and dedicated astrographs — shipping from Canadian inventory.
Our team observes and images with these instruments under Canadian conditions, and we will tell you honestly when a smaller scope you will actually set up beats a larger one that stays in the closet.
Filters
SVBONY MK90 90mm Maksutov-Cassegrain Telescope OTA
90mm Aperture Maksutov-Cassegrain Optical Design Internal Baffling for Stray Light Control 70mm Vixen-Style Dovetail Plate Standard 1.25-inch Focu...
View full detailsSVBONY SV48P 102mm f/6.5 Achromatic Refractor Telescope OTA
102mm Aperture 663mm Focal Length (f/6.5) Achromatic Doublet Lens 2.5-inch Dual-Speed RAP Focuser 210mm Vixen-Style Dovetail Description FAQ Sp...
View full detailsSVBONY SV48P 90mm f/5.5 Achromatic Refractor Telescope OTA
90mm Aperture 500mm Focal Length (f/5.5) Achromatic Doublet Lens 2-inch Dual-Speed Rack-and-Pinion Focuser Fully Multi-Coated (FMC) Optics Net Wei...
View full detailsSVBONY SV501P 60mm Portable Refractor Telescope
60mm Aperture Refractor 400mm Focal Length (f/6.4) 45° Correct-Image Prism for Terrestrial and Astro Viewing Includes K20mm Eyepiece (20x Magnific...
View full detailsSVBONY SV501P 70/400 Portable Refractor Telescope
70mm Aperture Refractor 400mm Focal Length F5.7 Focal Ratio Includes 20mm Kellner Eyepiece (20x) 45° Correct-Image Prism Diagonal for Terrestrial ...
View full detailsSVBONY SV502 Astronomy Telescope for Kids
50mm Refractor Telescope 360mm Focal Length (f/7.2) Includes K20mm Eyepiece 5x20 Optical Viewfinder 45-Degree Correct-Image Prism for Upright View...
View full detailsSVBONY SV503 102mm f/7 ED Doublet Refractor Telescope OTA
102mm Aperture ED Doublet Refractor 714mm Focal Length (f/7) S-FPL51 Extra-Low Dispersion Glass 1:10 Dual-Speed Rack & Pinion Focuser 101.9mm ...
View full detailsSVBONY SV503 70mm f/6.78 Quadruplet ED Flatfield Refractor Telescope OTA
70mm Aperture Quadruplet Astrograph 474mm Focal Length (f/6.78) 32mm Corrected Flat-Field Image Circle 2.5" Rack-and-Pinion Focuser 127.5mm Workin...
View full detailsSVBONY SV503 ED 80mm F7 Doublet
1.Rugged housing prevents damage; 2.Sliding graceful and soft dual-speed focuser; 3.Ed glass (S-FPL51) can produce very beautiful and clear images...
View full detailsSVBONY SV535 f/2.8 5-Element 7-Group APO Astro Camera Lens
105mm Focal Length Fast f/2.8 Focal Ratio Apochromatic (APO) 7-Element, 5-Group Optics Helical Focuser for Fine Adjustment Integrated Vixen/Arca-S...
View full detailsSVBONY SV545 45mm f/4.5 203mm Petzval Refractor Astrograph Lens
45mm Aperture 203mm Focal Length (f/4.5) 5-Element Petzval Optical Design Native Flat-Field Astrograph Helical Focuser with 360º Rotator M48x0.75 ...
View full detailsSVBONY SV550 122mm APO Refractor Telescope OTA
80mm Aperture f/6 Focal Ratio 480mm Focal Length Apochromatic Triplet Lens with FPL-51 ED Glass Super Multi-Coated (SMC) Optics 2900g Barrel Weigh...
View full detailsSVBONY SV550 80mm f/6 APO Triplet Refractor Telescope OTA
80mm Aperture Apochromatic Triplet Refractor 480mm Focal Length Fast f/6 Focal Ratio FPL51 ED Glass Element for Color Correction Resolving Power o...
View full detailsSVBONY SV555 54mm f/4.5 Petzval APO Astrograph Lens
54mm Aperture / 243mm Focal Length (f/4.5) 5-Element Petzval APO Optical Design 44mm Full-Frame Image Circle Variable f/4.5 to f/22 Aperture Ring ...
View full detailsTele Vue TV-85 OTA - White
Aperture: 85mm Focal Length: 600mm Focal Ratio: f/7 Optical Design: Apochromatic (APO) Doublet Focuser: 2-inch, 10:1 Dual-Speed Rack-and-Pinion We...
View full detailsWilliam Optics Cat 91 WIFD
91mm Aperture, 448mm Focal Length (f/4.9) 5-Element Advanced Petzval Optical Design 55mm Corrected Image Circle WIFD Rack & Pinion Internal Fo...
View full detailsWilliam Optics Fluorostar 120
120mm Aperture FPL-53 Triplet Apochromatic Optics 3.3" Rack & Pinion Focuser Built-in Camera Angle Rotator Integrated Bahtinov Mask Descrip...
View full detailsWilliam Optics Fluorostar 132
132mm Aperture, 910mm Focal Length (f/6.9) Air-Spaced Triplet Apochromatic Objective Premium FPL-53 Glass for Superior Color Correction Heavy-Duty...
View full detailsWilliam Optics Fluorostar 156
156mm Aperture Triplet Apochromat 1217mm Focal Length (f/7.8) FPL-53 & Lanthanum Glass Elements 3.7" Rack & Pinion Focuser Thermally Stabl...
View full detailsWilliam Optics Fluorostar 91
91mm Aperture Apochromatic Triplet FPL-53 Glass for Superior Color Correction Strehl Ratio Exceeding 0.95 3.3" Dual-Speed Rack & Pinion Focuse...
View full detailsWilliam Optics Gran Turismo 71 APO Triplet
71mm Triplet Apochromatic Lens 419mm Focal Length at f/5.9 44mm Full-Frame Image Circle 2.5" Rack & Pinion Focuser OTA Weight: 2.95 kg (6.5 lb...
View full detailsWilliam Optics Gran Turismo WIFD 81
81mm Aperture Triplet Apochromatic Refractor FPL-53 Ohara Glass for Superior Color Correction William Optics Internal Focusing Design (WIFD) Inclu...
View full detailsWilliam Optics GuideStar 61
FPL53 ED Air-Spaced Doublet Lens Dual-Purpose Guide Scope and Imaging Telescope Draw-Tube (Push-Pull) Focuser Rotating Lens Assembly for Image Fra...
View full detailsWilliam Optics MiniCat 51 WIFD f/3.5
51mm Aperture Diameter 178mm Focal Length f/3.5 Focal Ratio 6-Element Petzval Optical Design 43.2mm Full-Frame Image Circle WIFD Rack & Pinion...
View full detailsTelescope Designs and What Each Does Best
Aperture gathers light, focal length sets image scale, and focal ratio determines how fast you collect photons. The optical design determines how those three behave in practice.
- Refractors: Sealed lens systems with high contrast and no central obstruction. Apochromatic triplets and doublets with ED glass are the workhorse choice for wide-field deep-sky imaging.
- Newtonian reflectors: The most aperture for the money. Fast Newtonians and imaging astrographs deliver bright, wide fields; they need periodic collimation and a coma corrector.
- Dobsonians: A Newtonian on a simple alt-azimuth base — the most practical route to large aperture for visual deep-sky observing.
- Schmidt-Cassegrains and Maksutovs: Long focal length folded into a short tube, ideal for planetary, lunar and small galaxy work where image scale matters more than field width.
- Solar telescopes: Dedicated hydrogen-alpha instruments for prominences and surface detail, usable in daylight.
- Astrographs: Optics designed only for imaging, with flat, well-corrected fields across large sensors and no visual compromise.
Why Choose David Astro for Telescopes
A telescope is a system purchase. What goes on the mount, behind the focuser and in front of the sensor matters as much as the tube.
- Matched to your sky: We ask about your light pollution, your typical seeing and where you observe before recommending an aperture and focal ratio.
- Complete system quoting: We specify the mount, diagonal, eyepieces or imaging train alongside the tube, so the telescope arrives usable rather than half-usable.
- Authorized dealer: Full manufacturer warranty, verified authenticity, and warranty service handled inside Canada.
- Canadian stock and safe shipping: Telescopes ship from our Canadian warehouse, avoiding duties, brokerage fees and extra cross-border handling.
- Collimation and setup support: In-house help with first light, collimation and troubleshooting after the sale.
Telescopes in Canada — Frequently Asked Questions
- What is a good first telescope?
- For visual observing, a 6 or 8 inch Dobsonian gives the most aperture for the money and needs no electronics. For imaging, a short apochromatic refractor on a solid equatorial mount is far more forgiving than a large tube.
- Can one telescope do both visual and imaging?
- Yes, but with compromises. A fast refractor around f/6 handles both reasonably. Long, slow Schmidt-Cassegrains are superb visually and demanding to image with; large Dobsonians are visual instruments.
- How much aperture do I need for galaxies?
- Visually, dark skies matter more than aperture, though 8 inches and up makes structure visible. For imaging, integration time substitutes for aperture — a small refractor with many hours will out-resolve a large scope with few.
- Do telescopes ship safely within Canada?
- Yes. Everything in stock ships from our Canadian warehouse, which removes a border crossing and the handling that goes with it, and Canadian buyers pay no duties or brokerage.
Choosing your next telescope?
Tell us your sky, your targets and your budget, and we will recommend a complete working setup. Canadian stock, worldwide shipping.