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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$1,259.99
CA$1,259.99 - CA$1,259.99
CA$1,259.99
CA$1,008.00
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CA$1,008.00

Explore Scientific 120° 9mm Waterproof Eyepiece -2"

9mm Focal Length 120° Apparent Field of View 2" Diameter Barrel 12 Elements in 8 Groups Argon-Purged Waterproof Construction Tapered 2" Barrel ...

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CA$1,259.99
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CA$1,259.99
CA$1,008.00
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Explore Scientific 12V DC 2A Power Supply for PMC-Eight systems Save 21% Save %
CA$28.00
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CA$28.00
CA$22.00
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CA$22.00

Explore Scientific 12V DC 2A Power Supply for PMC-Eight systems

Provides 12V DC Power Delivers up to 2 Amps of Current Official Power Supply for Explore Scientific PMC-Eight Systems Ensures Stable Voltage for G...

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CA$139.99
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CA$112.00
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Explore Scientific 2" Adapter for FFFR507X-00

Adapts the 3" 0.7x Reducer (FFFR507X-00) to fit 2" focusers Enables use of premium optics on a wider range of telescopes Secure, precision-machine...

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CA$139.99
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CA$112.00
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Explore Scientific 2" Variable Polarizing Filter Save 30% Save %
CA$252.00
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CA$176.00
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CA$176.00

Explore Scientific 2" Variable Polarizing Filter

2" Filter Barrel Size Continuously Variable Brightness Ideal for Lunar, Planetary, and Solar Observing Neutral Gray Color Rendition Stackable with...

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CA$252.00
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CA$167.99
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Explore Scientific 2x Focal Extender - 1.25"

Doubles the magnification of any 1.25" eyepiece Telecentric optical design ensures a true 2x power factor Maintains the original eye relief of the...

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CA$251.99
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CA$202.00
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CA$202.00

Explore Scientific 2X Focal Extender - 2"

2X Focal Extender 2-inch Barrel with 1.25-inch Adapter Telecentric Optical Design Fully EMD-Coated Optics Edge-Blackened Lens Elements Descript...

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CA$202.00
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CA$559.99
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Explore Scientific 3" Field Flattener .7x Focal Reducer

Reduces focal ratio by a factor of 0.7x for wider fields and shorter exposures Functions as a field flattener to correct edge-of-field aberrations...

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CA$559.99
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CA$448.00
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CA$195.99
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Explore Scientific 3X Focal Extender - 1.25"

Instantly triples the magnification of any 1.25" eyepiece Telecentric optical design provides consistent magnification Maintains the eye relief of...

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Explore Scientific 3X Focal Extender - 2"

Provides 3X magnification for any 2" or 1.25" eyepiece Telecentric optical design ensures consistent magnification Fully EMD-coated optics for max...

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CA$83.99
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Explore Scientific 50mm Finder Scope Rings - Standard Height

Designed for 50mm finder scopes Standard height profile at 93mm Lightweight at only 3.9oz (110.6g) Three-point adjustment thumbscrews for precise ...

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CA$83.99
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CA$125.99
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Explore Scientific 50mm Finder Scope Rings - Tall

Designed for 50mm Finderscopes Tall Profile for Comfortable Viewing Angles Quick-Release Dovetail Bracket Multi-Point Adjustment Rings Large, Glov...

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CA$111.99
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Explore Scientific 50mm Finder Scope Rings for Right Angle Finder

Designed for 50mm Aperture Finder Scopes Dual-Ring Bracket with 6 Collimation Points Quick-Release Dovetail Foot (Base Sold Separately) Large, Glo...

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CA$97.99
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Explore Scientific 52° 10mm Waterproof Eyepiece - 1.25"

10mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof, Argon-Purged Construction Flat-Field Multi-Element Optical Design ...

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CA$97.99
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CA$78.00
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CA$78.00
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Explore Scientific 52° 15mm Waterproof Eyepiece - 1.25"

15mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof, Argon-Purged Construction Flat-Field Multi-Element Optical Design ...

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CA$97.99
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CA$78.00
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Explore Scientific 52° 20mm Waterproof Eyepiece - 1.25"

20mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Construction Flat-Field Multi-Element Optical Des...

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CA$97.99
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CA$78.00
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CA$78.00
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CA$111.99
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CA$78.00

Explore Scientific 52° 25mm Waterproof Eyepiece - 1.25"

25mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Construction Weighs 6.4 oz (181.4 g) Descripti...

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CA$111.99
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CA$78.00
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CA$78.00
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CA$139.99
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CA$112.00

Explore Scientific 52° 30mm Waterproof Eyepiece - 1.25"

30mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Construction Description FAQ Specifications In...

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Explore Scientific 52° 3mm Waterproof Eyepiece - 1.25"

3mm Focal Length for High-Power Observing 52° Apparent Field of View 1.25" Barrel Diameter Fully Waterproof and Argon-Purged Enhanced Multi-Layer ...

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Explore Scientific 52° 4.5mm Waterproof Eyepiece - 1.25"

High-magnification focal length for detailed views 52° apparent field of view Standard 1.25" barrel format Waterproof and argon-purged for all-wea...

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CA$209.99
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CA$168.00
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CA$168.00

Explore Scientific 52° 40mm Waterproof Eyepiece - 2"

40mm Focal Length 52° Apparent Field of View 2" Diameter Barrel Waterproof and Argon-Purged Construction Fully Multi-Coated, Flat-Field Optics ...

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CA$209.99
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CA$168.00
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CA$181.99
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CA$127.00
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Explore Scientific 5X Focal Extender - 1.25"

Delivers a 5X magnification increase to any 1.25" eyepiece 1.25" barrel diameter fits standard focusers and accessories Telecentric optical design...

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CA$97.99
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Explore Scientific 62° 14mm Waterproof Eyepiece - 1.25"

14mm Focal Length 62° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Construction Flat-Field Multi-Element Design D...

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Explore Scientific 62° 20mm Waterproof Eyepiece - 1.25"

1.25" Barrel Format Waterproof & Argon-Purged Flat-Field Optical Design Multi-Coated Optics Near-Parfocal with 62° Series Description FAQ S...

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CA$69.00
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CA$111.99
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Explore Scientific 62° 26mm Waterproof Eyepiece - 1.25"

26mm Focal Length 62° Apparent Field of View 1.25" Barrel Diameter Waterproof, Argon-Purged Construction Flat-Field Multi-Element Optical Design ...

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CA$111.99
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CA$90.00
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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.