Explore Scientific 68 Degree 24mm Telescope Eyepiece - Wide

Our review of the Explore Scientific 68 Degree 24mm eyepiece finds it best suited to amateur astronomers and seasoned observers who want a wide, comfortable view without upgrading to larger, heavier oculars. The single biggest reason to buy is the combination of a true 68 degree apparent field of view with substantial eye relief, which makes long observing sessions more comfortable and keeps stars sharp across the field. It balances solid build quality with a compact 1.25' barrel that fits many telescopes and offers clear performance at a practical price.

Key Features

• 24mm focal length: provides a useful medium-power view that works well for planets, deep sky objects and star fields.
• 68 degree field of view: offers a significantly wider apparent sky view than standard eyepieces, making it easier to frame extended objects and star clusters.
• 18.4mm eye relief: gives comfortable viewing for users who wear glasses or prefer to move around during observation sessions.
• Argon-purged waterproof construction: improves long-term reliability and keeps internal optics free from moisture and fogging in damp conditions.
• Compact, lightweight design: at 329g and a 1.25' barrel it remains easy to balance on smaller scopes and simple to carry in a kit.

Who It's For

This eyepiece is well suited to backyard observers and hobbyists who want a wider view without stepping up to larger, heavier wide-field oculars. Photographers using visual back adapters and casual visual observers will appreciate the combination of clarity and comfortable eye relief for extended sessions.

It is less appropriate for users who require extreme high power or very high-end ultra-wide apparent fields; those seeking the absolute maximum field and edge-to-edge performance from premium UWA designs may prefer to evaluate larger or specialized eyepieces instead.

Pros & Cons

Pros

• Solid build quality and argon-purged waterproof construction for durability in varied conditions.
• Wide 68 degree field makes framing large objects and star clouds easier and more immersive.
• Comfortable 18.4mm eye relief that many users find easy to use for long periods and with glasses.
• Good value for the performance delivered relative to comparable mid-range eyepieces.

Cons

• Some users report mixed notes on balance when mounted on certain lightweight telescopes, so counterweighting or placement may be needed.
• Not a replacement for very high-end ultra wide angle eyepieces if the absolute largest field is the priority.

Specifications

Focal Length	24mm
Apparent Field	68 degrees
Eye Relief	18.4mm
Barrel Size	1.25'
Field Stop Diameter	27.2mm
Length	75.6mm
Weight	329g (11.6oz)

Our Verdict

The Explore Scientific 68 Degree 24mm eyepiece is a practical, well-made option for observers who want a wider, comfortable view without bulk. With strong clarity, good eye relief and waterproof construction, it delivers dependable performance and represents solid value for most backyard astronomers.

Frequently Asked Questions

Will this eyepiece fit my 1.25' focuser?
Yes, it has a 1.25' barrel and will fit any standard 1.25' focuser without adapters.

Is the eyepiece suitable for eyeglass wearers?
Yes, the 18.4mm of eye relief is comfortable for most eyeglass wearers, making it easy to see the full field.

Is it waterproof for field use?
Yes, the argon-purged design provides waterproofing and helps prevent internal fogging in damp conditions.