• SVBONY SV135 7 to 21mm zoom eyepiece 1.25 inch W9105A ideal for beginner telescope owners providing smooth continuous variable magnification from wide field 21mm low power deep sky viewing to high power 7mm planetary and lunar detail in one single versatile eyepiece — Telescope Wolves
  • Comprehensive multi angle view of SVBONY SV135 7 to 21mm zoom eyepiece 1.25 inch W9105A showing zoom mechanism barrel design lens coating quality and overall build construction for beginner telescope owners considering their first zoom eyepiece upgrade — Telescope Wolves
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SVBONY SV135 7–21 mm Zoom Eyepiece 1.25" 57°–40° – W9105A

SVBONY SV135 7–21 mm Zoom Eyepiece 1.25" 57°–40° – W9105A

$49.99
$49.99
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The SVBONY SV135 7–21 mm Zoom Eyepiece provides flexible magnification in a single compact eyepiece. With a smooth zoom range from 7 mm to 21 mm, users can quickly adjust magnification without changing eyepieces, making it ideal for lunar, planetary, and deep-sky observation. The apparent field of view ranges from 57° at 7 mm to 40° at 21 mm, delivering comfortable and immersive viewing across the zoom range.

Why Choose the SV135 Zoom Eyepiece

The SVBONY SV135 zoom eyepiece reduces the need to carry multiple eyepieces while offering convenient magnification control. Its reliable optical performance and user-friendly design make it an excellent upgrade for beginners and a practical addition to any visual observing kit.

Key Features

  • Wide Zoom Range (7–21 mm): Covers low to high magnifications in one eyepiece

  • Variable Apparent Field of View: 57° at 7 mm to 40° at 21 mm

  • Fully Multi-Coated Optics: Improves light transmission and image contrast

  • 1.25-Inch Barrel Size: Compatible with most telescopes and focusers

  • Smooth Zoom Mechanism: Allows precise magnification changes during observation

  • Compact and Lightweight Design: Easy to balance on small and medium telescopes

  • Rubber Eyecup: Enhances viewing comfort and helps block stray light

Specifications

  • Model: SV135

  • Focal Length Range: 7–21 mm

  • Barrel Size: 1.25 inch

  • Apparent Field of View: 57° (7 mm) to 40° (21 mm)

  • Optical Coatings: Fully multi-coated

  • Eyecup: Rubber, foldable

  • Housing Material: Aluminum alloy

  • Application: Lunar, planetary, and deep-sky observation

  • SKU: W9105A

 

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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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All telescopes on Telescope Wolves are hand-picked with beginners in mind. If you're unsure which telescope is right for you, check out our Telescope Buying Guide.
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