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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 52° Series Eyepieces

Explore Scientific 52° Series eyepieces are compact, waterproof and argon-purged eyepieces with a moderate apparent field, close to a classic Plössl but in a sealed body. The 1.25" range runs from 3mm, 4.5mm and 6.5mm for the Moon and planets to 10mm, 15mm, 20mm, 25mm and 30mm, with a 40mm in a 2" barrel.

They make a simple, consistent set for beginners building a first eyepiece kit, and they stay light enough for small telescopes and travel setups.

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$99.99 - $99.99
$99.99
$99.99 - $99.99
$99.99

Explore Scientific 52° 30mm Waterproof Eyepiece - 1.25"

ES-EPWP5230-01
11 in stock

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

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$99.99 - $99.99
$99.99
$99.99 - $99.99
$99.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 52° 10mm Waterproof Eyepiece - 1.25"

ES-EPWP5210-01
2 in stock

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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$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° 4.5mm Waterproof Eyepiece - 1.25"

ES-EPWP5245-01
1 in stock

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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$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 52° 25mm Waterproof Eyepiece - 1.25"

ES-EPWP5225-01
3 in stock

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

Explore Scientific 52° 6.5mm Waterproof Eyepiece - 1.25"

ES-EPWP5265-01
6 in stock

6.5mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof and Argon-Purged Construction Multi-Coated, Flat-Field Optics De...

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$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99
$149.99 - $149.99
$149.99
$149.99 - $149.99
$149.99

Explore Scientific 52° 40mm Waterproof Eyepiece - 2"

ES-EPWP5240-01
2 in stock

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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$149.99 - $149.99
$149.99
$149.99 - $149.99
$149.99
$69.99 - $69.99
$69.99
$69.99 - $69.99
$69.99

Explore Scientific 52° 15mm Waterproof Eyepiece - 1.25"

ES-EPWP5215-01
12 in stock

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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$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° 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