For years zoom eyepieces were regarded as “convenient,” but without the optical resolution required in demanding astronomical applications. The Meade Series 4000 Zoom Eyepiece has changed that impression — completely and forever.

7 Lens 1.25" 7.2mm - 21.5mm Zoom Eyepiece.

The new Baader Hyperion 8-24mm Clickstop Zoom continues the Hyperion tradition of delivering top-of-class performance and quality, at very reasonable prices.

The PENTAX XF Zoom eyepiece provides magnification of 20x-60x (PF-65ED), 26x-78x (PF-80ED) and 32.5x-97.5x (PF-100ED), an apparent field of view of 42 to 60 degrees, and an eye relief of 11mm to 15mm. It also features a rubber eyepiece ring designed for comfortable viewing even with eyeglasses.

This high performance, high-contrast, high power eyepiece is ready to take its place among the best planetary eyepieces available... but with a "Nagler" twist. Al incorporated his proven "Nagler" concept into a zoom, while optimizing for the performance factors critical to planetary observers; contrast, resolution, and comfortable eye relief.

Tele Vue Nagler Zoom eyepiece 2mm - 4mm.

The SMC Zoom eyepiece features a magnification range of 16x-48x (PF-65ED), 20x-60x (PF-80ED) and 26x-78x (PF-100ED), an apparent field of view of 38 to 60 degrees, and an eye relief of 20mm. Like all PENTAX eyepieces, it is renowned for its outstanding image reproduction. JIS Class 6 rated waterproof and fog proof construction.