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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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$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° 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° 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 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
$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° 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° 4.5mm Waterproof Eyepiece - 1.25"

ES-EPWP5245-01

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
$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° 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