Skip to content

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

CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99

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...

View full details
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99
CA$433.99 - CA$433.99
CA$433.99
CA$433.99 - CA$433.99
CA$433.99

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...

View full details
CA$433.99 - CA$433.99
CA$433.99
CA$433.99 - CA$433.99
CA$433.99
CA$433.99 - CA$433.99
CA$433.99
CA$433.99 - CA$433.99
CA$433.99

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...

View full details
CA$433.99 - CA$433.99
CA$433.99
CA$433.99 - CA$433.99
CA$433.99
CA$307.99 - CA$307.99
CA$307.99
CA$307.99 - CA$307.99
CA$307.99

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...

View full details
CA$307.99 - CA$307.99
CA$307.99
CA$307.99 - CA$307.99
CA$307.99
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99

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 ...

View full details
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99

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...

View full details
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99
CA$111.99 - CA$111.99
CA$111.99
CA$111.99 - CA$111.99
CA$111.99

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 ...

View full details
CA$111.99 - CA$111.99
CA$111.99
CA$111.99 - CA$111.99
CA$111.99
CA$517.99 - CA$517.99
CA$517.99
CA$517.99 - CA$517.99
CA$517.99

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...

View full details
CA$517.99 - CA$517.99
CA$517.99
CA$517.99 - CA$517.99
CA$517.99
CA$419.99 - CA$419.99
CA$419.99
CA$419.99 - CA$419.99
CA$419.99

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...

View full details
CA$419.99 - CA$419.99
CA$419.99
CA$419.99 - CA$419.99
CA$419.99
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99

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...

View full details
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99
CA$167.99 - CA$167.99
CA$167.99
CA$167.99 - CA$167.99
CA$167.99

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...

View full details
CA$167.99 - CA$167.99
CA$167.99
CA$167.99 - CA$167.99
CA$167.99
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99

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...

View full details
CA$97.99 - CA$97.99
CA$97.99
CA$97.99 - CA$97.99
CA$97.99
CA$1,259.99 - CA$1,259.99
CA$1,259.99
CA$1,259.99 - CA$1,259.99
CA$1,259.99

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...

View full details
CA$1,259.99 - CA$1,259.99
CA$1,259.99
CA$1,259.99 - CA$1,259.99
CA$1,259.99
CA$363.99 - CA$363.99
CA$363.99
CA$363.99 - CA$363.99
CA$363.99

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...

View full details
CA$363.99 - CA$363.99
CA$363.99
CA$363.99 - CA$363.99
CA$363.99
CA$1,763.99 - CA$1,763.99
CA$1,763.99
CA$1,763.99 - CA$1,763.99
CA$1,763.99

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...

View full details
CA$1,763.99 - CA$1,763.99
CA$1,763.99
CA$1,763.99 - CA$1,763.99
CA$1,763.99
Explore Scientific 92° ED Series 20mm Waterproof Eyepiece
CA$630.00 - CA$630.00
CA$630.00
CA$630.00 - CA$630.00
CA$630.00

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...

View full details
CA$630.00 - CA$630.00
CA$630.00
CA$630.00 - CA$630.00
CA$630.00
Explore Scientific 92° ED Series 14mm Waterproof Eyepiece
CA$630.00 - CA$630.00
CA$630.00
CA$630.00 - CA$630.00
CA$630.00

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 ...

View full details
CA$630.00 - CA$630.00
CA$630.00
CA$630.00 - CA$630.00
CA$630.00
Explore Scientific 92° ED Series 9mm Waterproof Eyepiece
CA$630.00 - CA$630.00
CA$630.00
CA$630.00 - CA$630.00
CA$630.00

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...

View full details
CA$630.00 - CA$630.00
CA$630.00
CA$630.00 - CA$630.00
CA$630.00
Explore Scientific 92° ED Series 25mm Waterproof Eyepiece
CA$700.00 - CA$700.00
CA$700.00
CA$700.00 - CA$700.00
CA$700.00

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...

View full details
CA$700.00 - CA$700.00
CA$700.00
CA$700.00 - CA$700.00
CA$700.00
Explore Scientific 72° ED Series 20mm Waterproof Eyepiece
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00

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...

View full details
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00
Explore Scientific 72° ED Series 15mm Waterproof Eyepiece
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00

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...

View full details
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00
Explore Scientific 72° ED Series 11.5mm Waterproof Eyepiece
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00

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...

View full details
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00
Explore Scientific 72° ED 8.5mm Waterproof Eyepiece
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00

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...

View full details
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00
Explore Scientific 72° ED Series 6.5mm Waterproof Eyepiece
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00

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 ...

View full details
CA$420.00 - CA$420.00
CA$420.00
CA$420.00 - CA$420.00
CA$420.00