SVBONY 4mm 62° Aspheric Eyepiece - 1.25"

The 4mm Svbony 62° Aspheric eyepiece is the best choice for high-power planetary viewing. In an 8" f/6 Dobsonian (1200mm focal length), it will yield a magnification of 300x, which is ideal for resolving details like Jupiter's Great Red Spot and cloud bands, provided atmospheric seeing is steady.

The 23mm Svbony 62° eyepiece is excellent for large targets like the Andromeda Galaxy (M31). Its low power and wide 62° field of view will help you frame the full extent of the galaxy's core and faint outer arms, especially in a short focal length refractor or a rich-field Newtonian telescope.

An aspheric lens has a complex surface profile that corrects for spherical aberration more effectively than a simple spherical lens. In the Svbony 62° eyepieces, this results in sharper star images across more of the field of view, reducing the distortion you might see at the edges in a basic, low-cost wide-angle eyepiece.

Yes, if your telescope uses a 1.25" focuser or diagonal, this Svbony eyepiece set is fully compatible. The 1.25" barrel is the most common standard for amateur telescopes, including most refractors, reflectors, and Schmidt-Cassegrains.

While eye relief is not specified, eyepieces of this design typically have shorter eye relief, especially at the 4mm focal length. Eyeglass wearers may find it difficult to see the full 62° field of view. The 23mm will be the most comfortable, but for critical observing, you may need to remove your glasses.

Fully multi-coated means that all air-to-glass surfaces in the eyepiece have multiple layers of anti-reflection coatings applied. This process maximizes light transmission for brighter images and minimizes internal reflections, which improves contrast by reducing glare and ghosting.