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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 Eyepieces

Explore Scientific eyepieces are grouped by apparent field, from the compact 52° and 62° series through the 68°, 72° and 82° series to the hyper-wide 92°, 100° and 120° models. Nearly all are waterproof and argon-purged, in 1.25", 2" and 3" barrels.

Examples include the 82° 8.5mm LER for comfortable high power, the 62° 40mm for low-power sweeps and the 100° 20mm for immersive deep-sky views. Choose the field width that fits your telescope and observing style.

Filters

$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 62° 5.5mm Waterproof Eyepiece - 1.25"

ES-EPWP6255LE-01
8 in stock

5.5mm Focal Length 62° Apparent Field of View 1.25" Diameter Barrel Waterproof & Argon-Purged Flat-Field Multi-Element Design Description F...

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$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$309.99 - $309.99
$309.99
$309.99 - $309.99
$309.99

Explore Scientific 92° 12mm Long Eye Relief Waterproof Eyepiece - 2"

ES-EPWP9212-01

12mm Focal Length 92° Apparent Field of View 2" Barrel Diameter Long Eye Relief for Viewing Comfort Argon-Purged Waterproof Construction Descri...

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$309.99 - $309.99
$309.99
$309.99 - $309.99
$309.99
$309.99 - $309.99
$309.99
$309.99 - $309.99
$309.99

Explore Scientific 68° 40mm Waterproof Eyepiece - 2"

ES-EPWP6840-01

40mm Focal Length 68° Apparent Field of View 2" Barrel Diameter Argon-Purged Waterproof Construction Long Eye Relief for Eyeglass Wearers Parfocal...

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$309.99 - $309.99
$309.99
$309.99 - $309.99
$309.99
$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99

Explore Scientific 68° 34mm Waterproof Eyepiece - 2"

ES-EPWP6834-01

34mm Focal Length 68° Apparent Field of View 2" Diameter Barrel Argon-Purged Waterproof Construction Parfocal with other 68° Series Eyepieces Long...

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$219.99 - $219.99
$219.99
$219.99 - $219.99
$219.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 52° 3mm Waterproof Eyepiece - 1.25"

ES-EPWP5203-01
5 in stock

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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$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 52° 20mm Waterproof Eyepiece - 1.25"

ES-EPWP5220-01
8 in stock

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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$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$79.99 - $79.99
$79.99
$79.99 - $79.99
$79.99

Explore Scientific 62° 26mm Waterproof Eyepiece - 1.25"

ES-EPWP6226LE-01
4 in stock

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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$79.99 - $79.99
$79.99
$79.99 - $79.99
$79.99
$369.99 - $369.99
$369.99
$369.99 - $369.99
$369.99

Explore Scientific 92° 17mm Long Eye Relief Waterproof Eyepiece - 2"

ES-EPWP9217-01

17mm Focal Length 92° Apparent Field of View 2" Barrel Diameter Long Eye Relief Design Argon-Purged Waterproof Construction Description FAQ Spe...

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$369.99 - $369.99
$369.99
$369.99 - $369.99
$369.99
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific 100° 5.5mm Waterproof Eyepiece - 2"

ES-EPWP10055-01

5.5mm Focal Length for High-Magnification Views 100° Apparent Field of View for an Immersive Spacewalk Experience 2" Barrel Format Argon-Purged an...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 62° 20mm Waterproof Eyepiece - 1.25"

ES-EPWP6220LE-01
4 in stock

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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$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$119.99 - $119.99
$119.99
$119.99 - $119.99
$119.99

Explore Scientific 62° 32mm Waterproof Eyepiece -2"

ES-EPWP6232LE-01
4 in stock

32mm Focal Length 62° Apparent Field of View 2" Barrel Diameter Waterproof & Argon-Purged Construction Flat-Field Multi-Element Optics Near Pa...

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$119.99 - $119.99
$119.99
$119.99 - $119.99
$119.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 62° 14mm Waterproof Eyepiece - 1.25"

ES-EPWP6214LE-01
4 in stock

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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$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$899.99 - $899.99
$899.99
$899.99 - $899.99
$899.99

Explore Scientific 120° 9mm Waterproof Eyepiece -2"

ES-EPWP12009-01

9mm Focal Length 120° Apparent Field of View 2-Inch Diameter Barrel Argon-Purged Waterproof Construction Ideal for Non-Driven Telescopes Descri...

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$899.99 - $899.99
$899.99
$899.99 - $899.99
$899.99
$259.99 - $259.99
$259.99
$259.99 - $259.99
$259.99

Explore Scientific 62° 40mm Waterproof Eyepiece - 2"

ES-EPWP6240LE-01
3 in stock

40mm Focal Length 62° Apparent Field of View 2" Diameter Barrel Waterproof & Argon-Purged Construction Flat-Field Multi-Element Optics Desc...

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$259.99 - $259.99
$259.99
$259.99 - $259.99
$259.99
$1,259.99 - $1,259.99
$1,259.99
$1,259.99 - $1,259.99
$1,259.99

Explore Scientific 100° 30mm Waterproof Eyepiece - 3"

ES-EPWP10030-01

30mm Focal Length 100° Apparent Field of View 3" Diameter Barrel Argon-Purged Waterproof Construction Fully Multi-Coated and Edge-Blackened Optics...

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$1,259.99 - $1,259.99
$1,259.99
$1,259.99 - $1,259.99
$1,259.99
Explore Scientific 92° ED Series 20mm Waterproof Eyepiece
$449.99 - $449.99
$449.99
$449.99 - $449.99
$449.99

Explore Scientific 92° ED Series 20mm Waterproof Eyepiece

ES-EPWP9220ED-01

92° Apparent Field of View 20mm Focal Length 2-Inch Barrel Diameter Extra-Low Dispersion (ED) Glass Element Waterproof and Gas-Purged Construction...

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$449.99 - $449.99
$449.99
$449.99 - $449.99
$449.99
Explore Scientific 92° ED Series 14mm Waterproof Eyepiece
$449.99 - $449.99
$449.99
$449.99 - $449.99
$449.99

Explore Scientific 92° ED Series 14mm Waterproof Eyepiece

ES-EPWP9214ED-01

14mm Focal Length 92° Apparent Field of View 2-inch Barrel Diameter Extra-Low Dispersion (ED) Glass Element Waterproof, Gas-Purged Construction ...

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$449.99 - $449.99
$449.99
$449.99 - $449.99
$449.99
Explore Scientific 92° ED Series 9mm Waterproof Eyepiece
$449.99 - $449.99
$449.99
$449.99 - $449.99
$449.99

Explore Scientific 92° ED Series 9mm Waterproof Eyepiece

ES-EPWP9209ED-01

9mm Focal Length 92° Apparent Field of View 2-inch Barrel Diameter Extra-Low Dispersion (ED) Glass Waterproof and Gas-Purged Construction Descr...

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$449.99 - $449.99
$449.99
$449.99 - $449.99
$449.99
Explore Scientific 92° ED Series 25mm Waterproof Eyepiece
$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99

Explore Scientific 92° ED Series 25mm Waterproof Eyepiece

ES-EPWP9225ED-01

92° Apparent Field of View 25mm Focal Length 2" Barrel Diameter Extra-Low Dispersion (ED) Glass Waterproof and Fog-Proof Construction Descripti...

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$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99
Explore Scientific 72° ED Series 20mm Waterproof Eyepiece
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific 72° ED Series 20mm Waterproof Eyepiece

ES-EPWP7220ED-01

20mm Focal Length 72° Apparent Field of View 1.25" Barrel Diameter Waterproof & Gas-Purged Construction Extra-Low Dispersion (ED) Glass Des...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
Explore Scientific 72° ED Series 15mm Waterproof Eyepiece
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific 72° ED Series 15mm Waterproof Eyepiece

ES-EPWP7215ED-01

15mm Focal Length 72° Apparent Field of View 1.25" Diameter Barrel Extra-Low Dispersion (ED) Glass Waterproof Construction Description FAQ Spec...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
Explore Scientific 72° ED Series 11.5mm Waterproof Eyepiece
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific 72° ED Series 11.5mm Waterproof Eyepiece

ES-EPWP72115ED-01

11.5mm Focal Length 72° Apparent Field of View Extra-Low Dispersion (ED) Glass 1.25" Barrel Diameter Waterproof Construction Description FAQ Sp...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
Explore Scientific 72° ED 8.5mm Waterproof Eyepiece
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific 72° ED 8.5mm Waterproof Eyepiece

ES-EPWP7285ED-01

8.5mm Focal Length 72° Apparent Field of View Extra-Low Dispersion (ED) Glass 1.25" Barrel Diameter Waterproof and Gas-Purged Description FAQ S...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99
Explore Scientific 72° ED Series 6.5mm Waterproof Eyepiece
$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99

Explore Scientific 72° ED Series 6.5mm Waterproof Eyepiece

ES-EPWP7265ED-01

6.5mm Focal Length for High Magnification 72° Apparent Field of View 1.25" Barrel Diameter Extra-Low Dispersion (ED) Glass Element Waterproof and ...

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$299.99 - $299.99
$299.99
$299.99 - $299.99
$299.99