Coating Astronomical Telescope 7‑21mm Continuous Zoom Eyepiece 1.25 Inch 31.7 MM Silver

Feature: 1. Full multilayer coating high quality eyepiece, can zoom to any focal distance between 7mm to 21mm, choosing best magnification for your subject. 2. Fine workmanship, suitable for 1.25 inch 31.7mm astronomical telescope. 3. For viewing moon, planets, nebulae, star clusters and other heavenly body landscape and astronomy observation, high dispersion, wide field of view, very comfortable. 4. Professional manufacturing, metal body, surface coating, excellent optical performance. 5. Zoom eyepiece not just eyepiece, high magnification to low magnification, short focal distance to telescopic, easy to adjust proportion, very practical. Specification: Condition: 100percent Brand New Item Type: Eyepiece Material: Aluminum Alloy + Optical Glass Color: Silver Quantity: 1PCS Focal Distance: 7-21mm Continuous Zoom Lens Coating Film: Wideband Green Film Weight: Approx. 168g Interface Size: Approx. 31.7mm1.25inch. Package List: 1 x Eyepiece