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Sales & Clearance

Astronomy sales at David Astro, current markdowns across the catalogue, including open-box units, discontinued models still fully supported, and overstock we would rather see on a telescope than on a shelf. Everything here is held in Canadian stock and carries the same warranty and support as full-price inventory.

Reduced price does not mean reduced service. We will still calculate your back-focus, confirm compatibility and support the item after the sale, exactly as we would for anything else in the catalogue.

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CA$2,379.99
CA$2,379.99 - CA$2,379.99
CA$2,379.99
CA$1,904.00
CA$1,904.00 - CA$1,904.00
CA$1,904.00

Explore Scientific ED102-FCD100 Series Triplet APO Refractor

102mm (4") Aperture 714mm Focal Length (f/7) Air-Spaced Triplet Apochromat with HOYA FCD100 ED Glass 2.5" Dual-Speed Hexagonal Rack & Pinion F...

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CA$2,379.99
CA$2,379.99 - CA$2,379.99
CA$2,379.99
CA$1,904.00
CA$1,904.00 - CA$1,904.00
CA$1,904.00
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CA$2,659.99
CA$2,659.99 - CA$2,659.99
CA$2,659.99
CA$2,128.00
CA$2,128.00 - CA$2,128.00
CA$2,128.00

Explore Scientific ED102-FCD100 Series Triplet Telescope - Carbon Fiber

102mm (4") Aperture 714mm Focal Length f/7 Focal Ratio Air-Spaced Triplet Apochromat with HOYA FCD100 ED Glass 2.5" HEX Focuser Carbon Fiber Optic...

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CA$2,659.99
CA$2,659.99 - CA$2,659.99
CA$2,659.99
CA$2,128.00
CA$2,128.00 - CA$2,128.00
CA$2,128.00
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CA$3,329.00
CA$3,329.00 - CA$3,329.00
CA$3,329.00
CA$2,499.00
CA$2,499.00 - CA$2,499.00
CA$2,499.00

Explore Scientific ED127 Triplet APO f/7.5 with accessories - USED

ED127 telescope (good condition) 3" 0.7x reducer from Explore Scientific (brand new) 2" Field flattener from Explore Scientific (good condition) 6...

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CA$3,329.00
CA$3,329.00 - CA$3,329.00
CA$3,329.00
CA$2,499.00
CA$2,499.00 - CA$2,499.00
CA$2,499.00
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CA$5,599.99
CA$5,599.99 - CA$5,599.99
CA$5,599.99
CA$4,480.00
CA$4,480.00 - CA$4,480.00
CA$4,480.00

Explore Scientific ED152 Triplet in Carbon Fiber

152mm (6") Aperture f/8 Focal Ratio (1216mm Focal Length) Air-Spaced Triplet Apochromatic Optics HOYA FCD1 Extra-Low Dispersion Glass Carbon Fiber...

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CA$5,599.99
CA$5,599.99 - CA$5,599.99
CA$5,599.99
CA$4,480.00
CA$4,480.00 - CA$4,480.00
CA$4,480.00
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Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope
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CA$980.00
CA$980.00 - CA$980.00
CA$980.00
CA$784.00
CA$784.00 - CA$784.00
CA$784.00

Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope

80mm Aperture f/6 Focal Ratio Air-Spaced Triplet Apochromatic Optics HOYA FCD1 Extra-Low Dispersion Glass 2" Rack-and-Pinion Focuser Descriptio...

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CA$980.00
CA$980.00 - CA$980.00
CA$980.00
CA$784.00
CA$784.00 - CA$784.00
CA$784.00
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Explore Scientific ED80-FCD100 Triplet Refractor & iEXOS-100-02 Mount Bundle
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CA$1,092.00
CA$1,092.00 - CA$1,092.00
CA$1,092.00
CA$874.00
CA$874.00 - CA$874.00
CA$874.00

Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope + 0.8x Focal Reducer (Bundle)

80mm apochromatic air-spaced triplet refractor 480mm native focal length with an f/6 focal ratio Includes 0.8x focal reducer for a fast f/4.8, 384...

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CA$1,092.00
CA$1,092.00 - CA$1,092.00
CA$1,092.00
CA$874.00
CA$874.00 - CA$874.00
CA$874.00
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Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope + Field Flattener f/5 to f/7 (Bundle)
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CA$1,092.00
CA$1,092.00 - CA$1,092.00
CA$1,092.00
CA$874.00
CA$874.00 - CA$874.00
CA$874.00

Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope + Field Flattener f/5 to f/7 (Bundle)

80mm Aperture Air-Spaced Apochromatic Triplet 480mm Focal Length (f/6) Features HOYA FCD1 Extra-Low Dispersion Glass Includes Field Flattener for ...

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CA$1,092.00
CA$1,092.00 - CA$1,092.00
CA$1,092.00
CA$874.00
CA$874.00 - CA$874.00
CA$874.00
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Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope + 0.8x Focal Reducer (Bundle)
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CA$1,638.00
CA$1,638.00 - CA$1,638.00
CA$1,638.00
CA$1,310.00
CA$1,310.00 - CA$1,310.00
CA$1,310.00

Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope + 0.8x Focal Reducer (Bundle)

80mm Aperture 480mm Focal Length (f/6) Reduced to 384mm (f/4.8) with included 0.8x reducer HOYA FCD100 ED Air-Spaced Triplet Optics 2.5" Hexagonal...

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CA$1,638.00
CA$1,638.00 - CA$1,638.00
CA$1,638.00
CA$1,310.00
CA$1,310.00 - CA$1,310.00
CA$1,310.00
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Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope + Field Flattener f/5 to f/7 (Bundle)
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CA$1,638.00
CA$1,638.00 - CA$1,638.00
CA$1,638.00
CA$1,310.00
CA$1,310.00 - CA$1,310.00
CA$1,310.00

Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope + Field Flattener f/5 to f/7 (Bundle)

80mm Aperture Air-Spaced Apochromatic Triplet Features HOYA FCD100 Extra-Low Dispersion Glass 480mm Focal Length at f/6 Includes Field Flattener f...

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CA$1,638.00
CA$1,638.00 - CA$1,638.00
CA$1,638.00
CA$1,310.00
CA$1,310.00 - CA$1,310.00
CA$1,310.00
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CA$1,567.99
CA$1,567.99 - CA$1,567.99
CA$1,567.99
CA$1,254.00
CA$1,254.00 - CA$1,254.00
CA$1,254.00

Explore Scientific ED80-FCD100 Series Triplet APO Refractor

80mm Aperture 480mm Focal Length (f/6) Air-Spaced Triplet with HOYA FCD100 ED Glass 2.5" HEX Focuser with 10 lb Load Capacity Weighs Only 7.5 lbs ...

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CA$1,567.99
CA$1,567.99 - CA$1,567.99
CA$1,567.99
CA$1,254.00
CA$1,254.00 - CA$1,254.00
CA$1,254.00
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Explore Scientific ES-ASCOM-Y Dual Plug Cable
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CA$49.00
CA$49.00 - CA$49.00
CA$49.00
CA$39.00
CA$39.00 - CA$39.00
CA$39.00

Explore Scientific ES-ASCOM-Y Dual Plug Cable

Connects DB9 and USB Mini-B devices simultaneously to one computer Enables ASCOM control for Explore Scientific PMC-Eight systems Features an inte...

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CA$49.00
CA$49.00 - CA$49.00
CA$49.00
CA$39.00
CA$39.00 - CA$39.00
CA$39.00
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Explore Scientific EXOS-2/EXOS-2GT Counterweight 9.9 Pounds - Black
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CA$63.00
CA$63.00 - CA$63.00
CA$63.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00

Explore Scientific EXOS-2/EXOS-2GT Counterweight 9.9 Pounds - Black

Official component for Explore Scientific EXOS-2 and EXOS-2GT mounts Essential for balancing telescope optical tubes and imaging payloads Reduces ...

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CA$63.00
CA$63.00 - CA$63.00
CA$63.00
CA$50.00
CA$50.00 - CA$50.00
CA$50.00
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Explore Scientific EXOS2-GT Equatorial Mount with PMC-Eight GoTo System
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CA$1,400.00
CA$1,400.00 - CA$1,400.00
CA$1,400.00
CA$1,120.00
CA$1,120.00 - CA$1,120.00
CA$1,120.00

Explore Scientific EXOS2-GT Equatorial Mount with PMC-Eight GoTo System

28 lb Astrophotography Payload Capacity 40 lb Visual Payload Capacity PMC-Eight OpenGOTO System Wireless Control via WiFi & Bluetooth® Include...

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CA$1,400.00
CA$1,400.00 - CA$1,400.00
CA$1,400.00
CA$1,120.00
CA$1,120.00 - CA$1,120.00
CA$1,120.00
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Explore Scientific Explore FirstLight 80mm CF Telescope Go-To Tracker Combo with Solar Filter
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CA$574.00
CA$574.00 - CA$574.00
CA$574.00
CA$459.00
CA$459.00 - CA$459.00
CA$459.00

Explore Scientific Explore FirstLight 80mm CF Telescope Go-To Tracker Combo with Solar Filter

80mm Refractor Telescope Lightweight Carbon-Fiber-Look Tube iEXOS-100 PMC-Eight GoTo Equatorial Mount Includes Professional-Grade Solar Filter Sma...

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CA$574.00
CA$574.00 - CA$574.00
CA$574.00
CA$459.00
CA$459.00 - CA$459.00
CA$459.00
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Explore Scientific Explore FirstLight 80mm CF Telescope with Solar Filter
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CA$196.00
CA$196.00 - CA$196.00
CA$196.00
CA$137.00
CA$137.00 - CA$137.00
CA$137.00

Explore Scientific Explore FirstLight 80mm CF Telescope with Solar Filter

80mm Achromatic Refractor Professional-Grade Solarlite Solar Filter Included 25mm Plössl Eyepiece and 90° Diagonal Smartphone and DSLR Camera Adap...

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CA$196.00
CA$196.00 - CA$196.00
CA$196.00
CA$137.00
CA$137.00 - CA$137.00
CA$137.00
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Explore Scientific Explore FirstLight 80mm Telescope Go-To Tracker Combo
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CA$546.00
CA$546.00 - CA$546.00
CA$546.00
CA$437.00
CA$437.00 - CA$437.00
CA$437.00

Explore Scientific Explore FirstLight 80mm Telescope Go-To Tracker Combo

80mm Achromatic Refractor Telescope iEXOS-100 German Equatorial Go-To Mount PMC-Eight™ Precision Motion Control System Ideal for Lunar, Planetary,...

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CA$546.00
CA$546.00 - CA$546.00
CA$546.00
CA$437.00
CA$437.00 - CA$437.00
CA$437.00
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Explore Scientific Field Flattener for f/5 to f/7 Refractors
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CA$196.00
CA$196.00 - CA$196.00
CA$196.00
CA$137.00
CA$137.00 - CA$137.00
CA$137.00

Explore Scientific Field Flattener for f/5 to f/7 Refractors

Corrects field curvature for pinpoint stars edge-to-edge Optimized for refractor telescopes with f/5 to f/7 focal ratios Requires a precise 55mm (...

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CA$196.00
CA$196.00 - CA$196.00
CA$196.00
CA$137.00
CA$137.00 - CA$137.00
CA$137.00
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CA$69.99
CA$69.99 - CA$69.99
CA$69.99
CA$49.00
CA$49.00 - CA$49.00
CA$49.00

Explore Scientific Finder Scope Base with Mounting Screws

Weight: 1.4oz Dimensions: 50mm L x 51mm W x 25mm H Provides a secure base for Explore Scientific finder scopes Includes mounting screws for instal...

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CA$69.99
CA$69.99 - CA$69.99
CA$69.99
CA$49.00
CA$49.00 - CA$49.00
CA$49.00
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CA$419.99
CA$419.99 - CA$419.99
CA$419.99
CA$336.00
CA$336.00 - CA$336.00
CA$336.00

Explore Scientific FirstLight 114mm Newtonian with EQ3 Mount

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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CA$419.99
CA$419.99 - CA$419.99
CA$419.99
CA$336.00
CA$336.00 - CA$336.00
CA$336.00
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Explore Scientific G400 Series 10x42 Binoculars
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CA$280.00
CA$280.00 - CA$280.00
CA$280.00
CA$196.00
CA$196.00 - CA$196.00
CA$196.00

Explore Scientific G400 Series 10x42 Binoculars

10x Magnification 42mm Objective Lenses 325 ft Field of View at 1,000 yards 15.1mm Eye Relief Waterproof and Fog-Proof Description FAQ Specific...

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CA$280.00
CA$280.00 - CA$280.00
CA$280.00
CA$196.00
CA$196.00 - CA$196.00
CA$196.00
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Explore Scientific G400 Series 10x50 Binoculars
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CA$490.00
CA$490.00 - CA$490.00
CA$490.00
CA$343.00
CA$343.00 - CA$343.00
CA$343.00

Explore Scientific G400 Series 10x50 Binoculars

Roof-Style BaK-4 Prisms Fully Multi-Coated Optics Silver, Phase & Dielectric Prism Coatings Waterproof Construction Twist-Up Eyecups for Eyegl...

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CA$490.00
CA$490.00 - CA$490.00
CA$490.00
CA$343.00
CA$343.00 - CA$343.00
CA$343.00
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Explore Scientific G400 Series 8x42 Binoculars
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CA$280.00
CA$280.00 - CA$280.00
CA$280.00
CA$196.00
CA$196.00 - CA$196.00
CA$196.00

Explore Scientific G400 Series 8x42 Binoculars

8x Magnification 42mm Objective Lenses Waterproof and Fog-Proof Construction BaK-4 Prisms with Dielectric Coatings Fully Multi-Coated Optics De...

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CA$280.00
CA$280.00 - CA$280.00
CA$280.00
CA$196.00
CA$196.00 - CA$196.00
CA$196.00
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Explore Scientific G600 ED Series 10x42 Binoculars
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CA$490.00
CA$490.00 - CA$490.00
CA$490.00
CA$392.00
CA$392.00 - CA$392.00
CA$392.00

Explore Scientific G600 ED Series 10x42 Binoculars

10x Magnification & 42mm Aperture Premium Extra-Low Dispersion (ED) Glass Waterproof and Nitrogen-Purged Chassis 16.1mm Eye Relief with Twist-...

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CA$490.00
CA$490.00 - CA$490.00
CA$490.00
CA$392.00
CA$392.00 - CA$392.00
CA$392.00
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Explore Scientific G600 ED Series 8x42 Binoculars
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CA$490.00
CA$490.00 - CA$490.00
CA$490.00
CA$343.00
CA$343.00 - CA$343.00
CA$343.00

Explore Scientific G600 ED Series 8x42 Binoculars

8x magnification and 42mm ED glass objectives 372 ft field of view at 1,000 yards 17.3mm eye relief for comfortable viewing with or without glasse...

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CA$490.00
CA$490.00 - CA$490.00
CA$490.00
CA$343.00
CA$343.00 - CA$343.00
CA$343.00
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What Goes on Sale and Why

Understanding why an item is discounted helps you judge whether it is the right purchase, so we are explicit about the reason wherever we can be.

  • Open-box and display units: Returned or demonstrated equipment that has been inspected and tested here, typically indistinguishable from new in use.
  • Superseded models: Products replaced by a newer revision, often with only minor changes and full parts and warranty support remaining.
  • Overstock: Items we hold more of than current demand justifies, discounted while the stock lasts.
  • Seasonal accessories: Dew control, cases and cold-weather items that move seasonally and are reduced outside their peak.
  • End-of-line accessories: Adapters, rings and small parts from lines being retired, which remain perfectly serviceable.
  • Used equipment: Our separate collection of tested second-hand gear, for buyers comfortable with pre-owned optics and mounts.

Why Choose David Astro for Discounted Astronomy Gear

A discount is only a good deal if the item is right for your setup and stays supported afterwards.

  • Compatibility checked before you commit: We will confirm a sale item actually fits your telescope or mount, because a bargain adapter that does not fit is not a bargain.
  • Condition stated honestly: Open-box and display items are described as what they are, with any cosmetic marks noted.
  • Full warranty on new items: Discounted new stock carries the same manufacturer warranty as anything else we sell, handled domestically.
  • Same support after the sale: Setup help, spacing calculations and in-house diagnostics apply to discounted purchases too.

Astronomy Sales in Canada: Frequently Asked Questions

Do sale items carry a warranty?

New discounted items carry the full manufacturer warranty. Open-box items are covered as stated on the listing, and we handle any claim domestically rather than routing it internationally.

Is an open-box item risky?

Not in our experience. Everything is inspected and functionally tested here before it is relisted, and anything with a cosmetic mark is described. Optics are checked for coating condition and collimation.

Can I still get support on a discontinued model?

Generally yes. We stock spare parts and adapters for many superseded models, and we say on the listing where parts availability is limited.

How long do sale prices last?

Until the stock is gone. These are finite quantities rather than a recurring promotion, so an item that disappears from this collection has usually sold rather than returned to full price.

Found something here?

Ask us before you order and we will confirm it fits your setup. Canadian stock, full support.