The zoom eyepiece offers a variable field of view from 40° to 60° and a focal length range of 9 to 27 mm, allowing flexible magnification changes without the need to swap eyepieces. This makes it well suited for a wide variety of astronomical observations. The 1.25-inch standard eyepiece interface ensures broad compatibility with most astronomical telescopes.

Its high-quality optical design, featuring a 7-element / 4-group lens structure with full multi-coating (FMC), delivers clear, sharp, and high-contrast images. A twist-up eyecup with a 17.5 mm eye relief provides a comfortable viewing experience and is especially suitable for eyeglass wearers. In addition, the eyepiece is equipped with a standard M28.5 × 0.6 filter thread, supporting the use of various astronomical filters to meet different observing requirements.

Scope of Delivery:

• Svbony SV191 Zoom Eyepiece 9-27 mm