Eyepiece

Mid-range high power eyepieces like the 6.5mm are instrumental when transitioning through magnifications to observe an object until it is best s...

The longest focal length in the 52° Series with the longest eye relief, the 40mm is also the only 2.0-inch O.D. eyepiece in this series. E...

High power eyepieces (e.g. 3mm to 10mm) are used not only for obvious observations of planets and double stars, but can be employed for bright, c...

A new focal length joins the Explore Scientific line of inert gas-purged Waterproof Eyepieces with the 3mm 52° Series Eyepiece. A logical companio...

Loved by deep sky observers, a 30mm focal length eyepiece produces a large exit pupil which floods your dilated eye with light, which is ne...

Long considered the “standard” eyepiece that is often supplied with telescopes that are sold by various suppliers, the 25mm focal length cat...

Often considered the perfect mid-range focal length for most amateur telescopes, the 20mm on the ED127 at f7.5 produces a 1 degree true field...

Solidly in the mid-magnification range for most amateur telescopes, the 15mm is a true workhorse for visual observers. If you love deep sky ob...

Eyepieces at or near the 10mm range are often considered a mandatory focal length in your collection, as this focal length range is departure p...

The Explore Scientific 4.7mm 82° Series Argon-Purged Waterproof Eyepiece is used when very high magnifications are desired. Watch the video on this...

With its particularly long eye relief of 15.9mm, the 4.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces pu...

Argon-Purged and Waterproof: Internally sealed and purged with inert, dry nitrogen gas to prevent internal fogging, to halt the intrusion of fine p...

Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

Nitrogen-Purged and Waterproof: Internally sealed and purged with inert, dry nitrogen gas to prevent internal fogging, to halt the intrusion of fin...

Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 92° Series™ eyepieces are hyper-wide class oculars that can transfor...

The Explore Scientific 9mm 120° Series eyepiece really is in a class by itself. The 120° apparent field of view is unlike anything you have experie...

Huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention t...

Huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention t...

Huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention t...

  Huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention...

PANORAMIC VIEWS. PINPOINT PRECISION. Ultra-Wide Field of View Experience an expansive, immersive view of the night sky with an ultra‑wide field of ...

ANORAMIC VIEWS. PINPOINT PRECISION. Ultra-Wide Field of View Experience an expansive, immersive view of the night sky with an ultra‑wide field of v...

ANORAMIC VIEWS. PINPOINT PRECISION. Ultra-Wide Field of View Experience an expansive, immersive view of the night sky with an ultra‑wide field of v...

  40mm Kellner eyepiece designed for 2” focusers 3-element lens design with fully multi-coated optics Wide 56° apparent field of view allows you t...