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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Explore Scientific Apochromatic Refractors

Explore Scientific apochromatic refractors are air-spaced triplets built for sharp, color-free views and imaging. The range includes the ED80, ED102, 127mm f/7.5 and ED152 tubes, in Essential Series or FCD100 Series versions, with carbon fiber or aluminum tubes and a 2.5" HEX focuser on the larger models.

Several bundles add a field flattener, a 0.8x focal reducer or an iEXOS-100 PMC-Eight equatorial tracker, so the ED80 and ED102 can serve as a complete portable imaging setup.

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$2,799.99 - $2,799.99
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Explore Scientific FCD100 Series 127mm f/7.5 Triplet APO Refractor - Carbon Fiber with 2.5" HEX Focuser

ES-FCD100-127075-CF-01

127mm Aperture f/7.5 Focal Ratio / 952mm Focal Length Air-Spaced Triplet Apochromat with FCD100 Glass Carbon Fiber Optical Tube 2.5" HEX Focuser ...

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$1,899.99 - $1,899.99
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$1,899.99

Explore Scientific ED102-FCD100 Series Triplet Telescope - Carbon Fiber

ES-FCD100-10207-CF-01
1 in stock

102mm Aperture Air-Spaced Triplet Apochromatic Optics Premium HOYA FCD100 ED Glass Carbon Fiber Optical Tube Assembly 2.5" Hexagonal Rack & Pi...

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$1,899.99 - $1,899.99
$1,899.99
$1,899.99 - $1,899.99
$1,899.99
Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope + Field Flattener f/5 to f/7 (Bundle)
$1,299.99 - $1,299.99
$1,299.99
$1,299.99 - $1,299.99
$1,299.99

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

ES-FCD100-0806-FF

80mm Aperture Triplet Apochromatic Refractor Features Hoya FCD100 ED Glass Element Air-Spaced Triplet Objective Lens Includes Field Flattener for ...

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$1,299.99 - $1,299.99
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope + 0.8x Focal Reducer (Bundle)
$1,299.99 - $1,299.99
$1,299.99
$1,299.99 - $1,299.99
$1,299.99

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

ES-FCD100-0806-FR0.8x

80mm Aperture 480mm Focal Length (f/6) HOYA FCD100 ED Air-Spaced Triplet Optics Includes 0.8x Focal Reducer/Corrector 2.5" Hexagonal Focuser De...

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$1,299.99 - $1,299.99
$1,299.99
$1,299.99 - $1,299.99
$1,299.99
Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope (Bundle)
$1,699.99 - $1,699.99
$1,699.99
$1,699.99 - $1,699.99
$1,699.99

Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope (Bundle)

ES-FCD100-0806-FF-IEXOS100

Complete astrophotography bundle with 80mm triplet refractor and GoTo mount 80mm aperture and 480mm focal length for wide-field imaging HOYA FCD10...

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$1,699.99 - $1,699.99
$1,699.99
$1,699.99 - $1,699.99
$1,699.99
Explore Scientific ED80-FCD100 Air-Spaced Triplet Refractor Telescope with 0.8x Focal Reducer (Bundle)
$1,699.99 - $1,699.99
$1,699.99
$1,699.99 - $1,699.99
$1,699.99

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

ES-FCD100-0806-FR0.8x-IEXOS100

80mm Air-Spaced Triplet Apochromatic OTA Includes a matched 0.8x Focal Reducer iEXOS-100 Equatorial Mount with GoTo PMC-Eight wireless control sys...

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$1,699.99 - $1,699.99
$1,699.99
$1,699.99 - $1,699.99
$1,699.99
Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Telescope in Carbon Fiber + iEXOS-100-02 PMC-Eight Equatorial Tracker (Bundle)
$2,599.99 - $2,599.99
$2,599.99
$2,599.99 - $2,599.99
$2,599.99

Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Telescope in Carbon Fiber + iEXOS-100-02 PMC-Eight Equatorial Tracker (Bundle)

ES-FCD100-102-CF-IEXOS100

Features premium HOYA FCD100 ED glass for superior color correction Air-spaced triplet optical design delivers high-contrast, sharp images Lightwe...

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$2,599.99 - $2,599.99
$2,599.99
$2,599.99 - $2,599.99
$2,599.99
Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope + Field Flattener f/5 to f/7 (Bundle)
$799.99 - $799.99
$799.99
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$799.99

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

ES-ED-0806-FF

80mm Aperture Air-Spaced Apochromatic Triplet Optics Features HOYA FCD1 Extra-Low Dispersion Glass Includes Field Flattener for f/5 to f/7 Telesco...

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$799.99 - $799.99
$799.99
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$799.99
Explore Scientific ED80-FCD100 Triplet Refractor & iEXOS-100-02 Mount Bundle
$799.99 - $799.99
$799.99
$799.99 - $799.99
$799.99

Explore Scientific ED80-FCD100 Triplet Refractor & iEXOS-100-02 Mount Bundle

ES-ED-0806-FR0.8x

Features genuine HOYA FCD100 ED glass for superior color correction Air-spaced triplet optical design virtually eliminates chromatic aberration Li...

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$799.99 - $799.99
$799.99
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$799.99
Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope (Bundle)
$1,199.99 - $1,199.99
$1,199.99
$1,199.99 - $1,199.99
$1,199.99

Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope (Bundle)

ES-ED-0806-FF-IEXOS100

ED80 Air-Spaced Triplet Apochromatic Refractor iEXOS-100 GoTo German Equatorial Mount Wireless PMC-Eight Precision Motion Control System Includes ...

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$1,199.99 - $1,199.99
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$1,199.99
Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope with 0.8x Focal Reducer and iEXOS-100-2 PMC-Eight Equatorial Tracker System
$1,199.99 - $1,199.99
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$1,199.99

Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope with 0.8x Focal Reducer and iEXOS-100-2 PMC-Eight Equatorial Tracker System

ES-ED-0806-FR0.8x-IEXOS100

80mm Air-Spaced Apochromatic Triplet Refractor iEXOS-100-2 GoTo Equatorial Mount with PMC-Eight Controller Includes 0.8x Two-Element Focal Reducer...

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$1,199.99 - $1,199.99
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$3,999.99 - $3,999.99
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$3,999.99

Explore Scientific ED152 Triplet in Carbon Fiber

ES-TED15208CF-HEX33

152mm (6") Aperture f/8 Focal Ratio Air-Spaced Triplet Apochromatic Optics HOYA FCD1 Extra-Low Dispersion Glass Carbon Fiber Optical Tube 20.5 lbs...

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$3,999.99 - $3,999.99
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Explore Scientific FCD100 Series 127mm f/7.5 Triplet APO Refractor - Aluminum with 2.5" HEX Focuser

ES-FCD100-127075-02

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

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$2,499.99 - $2,499.99
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$1,699.99 - $1,699.99
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$1,699.99

Explore Scientific ED102-FCD100 Series Triplet APO Refractor

ES-FCD100-10207-02

102mm Aperture 714mm Focal Length (f/7) Air-Spaced Triplet Apochromatic Design Genuine HOYA FCD100 ED Glass Element 2.5" HEX Focuser with 10 lb Ca...

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$1,699.99 - $1,699.99
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$1,119.99 - $1,119.99
$1,119.99
$1,119.99 - $1,119.99
$1,119.99

Explore Scientific ED80-FCD100 Series Triplet APO Refractor

ES-FCD100-0806-02

Apochromatic Triplet Refractor Genuine HOYA FCD100 ED Glass Air-Spaced Optical Design Proprietary EMD Multi-Layer Coatings Heavy-Duty Hexagonal Fo...

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$1,119.99 - $1,119.99
$1,119.99
$1,119.99 - $1,119.99
$1,119.99