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Explore Scientific

Explore Scientific occupies a useful place in the market: optics and eyepieces built to a standard that used to cost considerably more, backed by a transferable warranty. Their waterproof, argon-purged wide-field eyepieces and FCD-100 air-spaced apochromatic refractors are the products most often recommended to observers who have outgrown entry-level gear. David Astro carries Explore Scientific products in Canada, held in stock for fast domestic shipping.

Our team uses these instruments in the field, including in the cold and damp conditions where the argon purging in the eyepiece line genuinely earns its keep. We can tell you where the line's strengths are and where a different brand suits your use better.

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

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

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

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

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

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$546.00
CA$546.00
CA$3,499.99 - CA$3,499.99
CA$3,499.99
CA$3,499.99 - CA$3,499.99
CA$3,499.99

Explore Scientific FCD100 Series 127mm f/7.5 Triplet APO Refractor - Aluminum with 2.5" HEX Focuser

127mm (5") Aperture f/7.5 Focal Ratio / 952mm Focal Length Air-Spaced Triplet Apochromatic Optics HOYA FCD100 ED Glass Element 2.5" Hexagonal Rack...

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CA$3,499.99 - CA$3,499.99
CA$3,499.99
CA$3,499.99 - CA$3,499.99
CA$3,499.99
CA$3,919.99 - CA$3,919.99
CA$3,919.99
CA$3,919.99 - CA$3,919.99
CA$3,919.99

Explore Scientific FCD100 Series 127mm f/7.5 Triplet APO Refractor - Carbon Fiber with 2.5" HEX Focuser

127mm (5") Aperture f/7.5 Focal Ratio & 952mm Focal Length Air-Spaced Triplet Apochromat with HOYA FCD100 ED Glass Carbon Fiber Optical Tube W...

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CA$3,919.99 - CA$3,919.99
CA$3,919.99
CA$3,919.99 - CA$3,919.99
CA$3,919.99
Explore Scientific Field Flattener for f/5 to f/7 Refractors
CA$196.00 - CA$196.00
CA$196.00
CA$196.00 - CA$196.00
CA$196.00

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$196.00
CA$196.00
CA$69.99 - CA$69.99
CA$69.99
CA$69.99 - CA$69.99
CA$69.99

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$69.99
CA$69.99
CA$338.00 - CA$338.00
CA$338.00
CA$338.00 - CA$338.00
CA$338.00

Explore Scientific FirstLight 100mm Mak-Cassegrain with EQ3 Mount

Mak-Cassegrain Optical Design Long Focal Length for High Magnification German Equatorial EQ3 Mount Slow-Motion Controls for Precise Tracking Compa...

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CA$338.00 - CA$338.00
CA$338.00
CA$338.00 - CA$338.00
CA$338.00
CA$419.99 - CA$419.99
CA$419.99
CA$419.99 - CA$419.99
CA$419.99

Explore Scientific FirstLight 100mm Mak-Cassegrain with Twilight Nano Mount

100mm Maksutov-Cassegrain OTA 1400mm Focal Length (f/14) Twilight Nano Alt-Azimuth Mount 25mm Plössl Eyepiece (1.25") Includes Smartphone Adapter ...

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CA$419.99 - CA$419.99
CA$419.99
CA$419.99 - CA$419.99
CA$419.99
CA$310.00 - CA$310.00
CA$310.00
CA$310.00 - CA$310.00
CA$310.00

Explore Scientific FirstLight 102mm Doublet Refractor with Twilight Nano Mount

102mm (4") Aperture Air-Spaced Doublet Refractor Optics Fully Multi-Coated Lenses Twilight Nano Alt-Azimuth Mount Full-Size, Adjustable Tripod ...

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CA$310.00 - CA$310.00
CA$310.00
CA$310.00 - CA$310.00
CA$310.00
CA$419.99 - CA$419.99
CA$419.99
CA$419.99 - CA$419.99
CA$419.99

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$419.99
CA$419.99
CA$699.99 - CA$699.99
CA$699.99
CA$699.99 - CA$699.99
CA$699.99

Explore Scientific FirstLight 127mm Mak-Cassegrain

127mm (5") Maksutov-Cassegrain Optical Tube 1900mm Focal Length f/15 Focal Ratio Includes 25mm Plössl Eyepiece & 1.25" Diagonal Smartphone Ada...

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CA$699.99 - CA$699.99
CA$699.99
CA$699.99 - CA$699.99
CA$699.99
CA$209.99 - CA$209.99
CA$209.99
CA$209.99 - CA$209.99
CA$209.99

Explore Scientific FirstLight EXOS Nano Mount

15 lb Payload Capacity 10 lb Mount Weight (without Counterweight) Light-Duty German Equatorial Design Vixen-Style Dovetail Saddle 1.25" Adjustable...

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CA$209.99 - CA$209.99
CA$209.99
CA$209.99 - CA$209.99
CA$209.99
CA$140.00 - CA$140.00
CA$140.00
CA$140.00 - CA$140.00
CA$140.00

Explore Scientific FirstLight Twilight Nano Mount

Light-Duty Alt-Azimuth Mount Head Vixen-Style Dovetail Saddle Adjustable-Height Metal Tripod Single-Arm Control Handle for Smooth Motion Designed ...

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CA$140.00 - CA$140.00
CA$140.00
CA$140.00 - CA$140.00
CA$140.00
Explore Scientific G400 Series 10x42 Binoculars
CA$280.00 - CA$280.00
CA$280.00
CA$280.00 - CA$280.00
CA$280.00

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

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

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

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

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$490.00
CA$490.00
Explore Scientific G600 ED Series 8x56 Binoculars
CA$560.00 - CA$560.00
CA$560.00
CA$560.00 - CA$560.00
CA$560.00

Explore Scientific G600 ED Series 8x56 Binoculars

Large Aperture for Low-Light Viewing Premium ED (Extra-Low Dispersion) Glass Dielectric and Phase-Correction Prism Coatings Waterproof and Nitroge...

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CA$560.00 - CA$560.00
CA$560.00
CA$560.00 - CA$560.00
CA$560.00
Explore Scientific Galileoscope Refractor Telescope STEM Kit
CA$35.00 - CA$35.00
CA$35.00
CA$35.00 - CA$35.00
CA$35.00

Explore Scientific Galileoscope Refractor Telescope STEM Kit

Hands-On Telescope Assembly: Build a functional refractor telescope from the ground up. No Tools Required: All components snap together in minut...

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CA$35.00 - CA$35.00
CA$35.00
CA$35.00 - CA$35.00
CA$35.00
Explore Scientific Galileoscope Tripod
CA$42.00 - CA$42.00
CA$42.00
CA$42.00 - CA$42.00
CA$42.00

Explore Scientific Galileoscope Tripod

Convertible Tabletop to Full-Height Legs Smooth Panhandle Motion Control Lightweight, Portable Design Secure Mount for the Galileoscope Standard 1...

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CA$42.00 - CA$42.00
CA$42.00
CA$42.00 - CA$42.00
CA$42.00

The Explore Scientific Lineup

Explore Scientific covers visual and imaging from beginner through advanced, with the eyepiece series being the best-known part of the catalogue.

  • 62, 68, 82 and 92 degree eyepieces: Waterproof and argon-purged so internal surfaces cannot fog, which matters on humid Canadian summer nights and in rapid temperature drops.
  • 100 degree series: Very wide apparent field designs for immersive views, particularly effective in undriven Dobsonians where field width equals tracking time.
  • ED apochromatic refractors: FCD-100 and FCD-1 glass air-spaced triplets with carbon fibre and aluminium tube options, suited to both wide-field imaging and high-contrast visual use.
  • Truss-tube and solid-tube Dobsonians: Large-aperture visual instruments with collapsible designs that make transport realistic.
  • Maksutov-Newtonian and Cassegrain optics: Long focal length designs for planetary and lunar detail.
  • Diagonals, Barlows and accessories: Dielectric diagonals, focal extenders and finders designed around the rest of the line.

Why Choose David Astro for Explore Scientific

Explore Scientific's range is broad enough that the wrong choice within it is easy. We narrow it against your telescope and your sky.

  • Eyepiece series matched to focal ratio: The wider series perform best in fast telescopes where cheaper designs break down at the edge; in slow scopes the narrower series is often the better value.
  • Weight and balance checked: The 100 degree eyepieces are heavy enough to unbalance a small Dobsonian, and we will tell you before you order rather than after.
  • Authorized dealer: Full manufacturer warranty, with the transferable coverage properly registered and warranty handled domestically.
  • Canadian stock: In-stock items ship from Canada with no duties or brokerage fees for Canadian buyers.
  • Setup and collimation support: In-house help with first light on the larger Dobsonians and Newtonians.

Explore Scientific in Canada — Frequently Asked Questions

What does argon purging actually do?
It replaces the air inside the eyepiece with dry argon and seals it, so interior lens surfaces cannot fog when the eyepiece is moved between warm and cold air. In Canadian conditions that happens constantly.
Is the 82 or the 92 degree series better?
The 92 series has a wider field and better edge correction in fast telescopes, at more weight and cost. In an f/8 or slower scope the 82 series performs very close to it for considerably less.
Are the ED refractors good for imaging?
Yes, paired with a matched field flattener. The triplet designs control colour well enough for broadband imaging, and the focusers on the current models handle typical imaging trains.
Is the warranty valid if I buy in Canada?
Yes, and it is handled here. As an authorized dealer we register and service warranty claims domestically, without international shipping.

Choosing within the range?

Tell us your telescope and what you observe, and we will narrow it down. Canadian stock, warranty handled here.