1.25 Inch Zoom Eyepiece 7-21mm Stepless Zoom, Sweet Zoom For Planetary And Deep Sky Viewing, Multi-Coated 7-Element Optics In 4 Groups, 16-33mm Eye Relief, 30 To 47 Degree Field Of View Replaces Fixed Lenses Delivers Crisp Lunar, Planetary DSO Detail
This 1.25-inch zoom eyepiece is designed for planetary and deep-sky observing. It replaces multiple fixed focal lengths, fitting most amateur telescopes with standard 1.25-inch focusers and filter threads.
✅ 1.25-inch barrel with stepless 7-21mm zoom to cover wide range
✅ 7-element, 4-group optical system with multi-coated optics for crisp, bright images
✅ Eye relief 16-33mm with foldable eyecup for eyeglass wearers
✅ Apparent field of view 30-47° across zoom range
✅ All-metal construction with knurled grip and filter threads
💡 What is a stepless zoom eyepiece and how does it help planetary and deep-sky viewing? A stepless zoom eyepiece lets you smoothly adjust magnification without swapping lenses. - handy for quick target changes between lunar, planetary, and DSOs - reduces lens swaps and keeps viewing sessions continuous - compatible with 1.25-inch filter threads and standard focusers - provides adjustable eye relief from 16mm to 33mm for eyeglass wearers
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