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 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 ...
View full detailsExplore 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...
View full detailsExplore 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...
View full detailsExplore Scientific FirstLight EXOS Nano Mount
15 lb Payload Capacity 10 lb Mount Head Weight German Equatorial Design for Easy Tracking Vixen-Style Dovetail Saddle 1.25" Adjustable Steel Tripo...
View full detailsExplore 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...
View full detailsExplore 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...
View full detailsExplore 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...
View full detailsExplore 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-...
View full detailsExplore 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...
View full detailsExplore 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...
View full detailsExplore 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...
View full detailsExplore Scientific Galileoscope Tripod
Convertible Tabletop to Full-Height Legs Smooth Panhandle Motion Control Lightweight, Portable Design Secure Mount for the Galileoscope Standard 1...
View full detailsExplore Scientific Giant Binoculars Finder Adapter
Attaches a Finder Scope Base to Explore Scientific Giant Binoculars Enables Accurate Pointing and Target Acquisition Requires Explore Scientific H...
View full detailsExplore Scientific iEXOS-100 Azimuth Adjuster Adapter
Enables fine azimuth adjustments for the iEXOS-100 mount Essential for achieving precise polar alignment Improves tracking accuracy for long-expos...
View full detailsExplore Scientific iEXOS-100 Polar Finder and Adapter
Enables Precise Polar Alignment for Astrophotography Designed Specifically for the Explore Scientific iEXOS-100 Mount Illuminated Reticle for Easy...
View full detailsExplore Scientific iEXOS-100-02 HD PMC-Eight Equatorial Tracker System
PMC-Eight™ GoTo System German Equatorial Mount Design Wireless and Wired Control via App or ASCOM Includes Illuminated Polar Finder Scope Includes...
View full detailsExplore Scientific Illuminated Polar Finder
Enables Precise Polar Alignment for Astrophotography Features an Illuminated Reticle with Polar Assist Markings Essential Upgrade for Eliminating ...
View full detailsExplore Scientific Illuminator II for Finder Scopes
Replaces standard finder illuminators Powered by two common AAA batteries (not included) Variable brightness control from dim to bright Weight: 1....
View full detailsExplore Scientific M42x0.75 Adapter for FFEDAPO
Connects cameras to the Explore Scientific FFEDAPO Field Flattener Provides standard male M42x0.75 T-threads Required for attaching DSLR/mirrorles...
View full detailsExplore Scientific M48x0.75 Adapter for FFFR
Connects M48 (2-inch filter thread) accessories to the Explore Scientific 3" 0.7x Reducer Replaces the standard M42 T-thread adapter included with...
View full detailsExplore Scientific M48x1 Adapter for FFEDAPO
Connects M48x1 accessories to the FFEDAPO Field Flattener Provides a larger aperture than standard M42 T-threads Designed for Explore Scientific's...
View full detailsExplore Scientific Medium-Vixen Style Saddle Plate
Vixen-Style Mounting Profile Solid Extruded Aluminum Construction Black Anodized Finish for Durability Medium Length for Versatile Balancing Light...
View full detailsExplore Scientific Moon Crater Map (2-Sided)
2-Sided Lunar Reference Map Side 1: Pinpoints Key Observable Features Side 2: Marks Historic Spacecraft Landing Sites Designed as a Companion for ...
View full detailsExplore Scientific Nebula Filter CLS - 1.25"
City Light Suppression (CLS) Filter Enhances Contrast for Deep-Sky Objects Available in 1.25" and 2" Sizes Ideal for Viewing Nebulae and Galaxies ...
View full detailsThe 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.