- 7-21mm focal length
- 1.25 format barrel.
- Replace multiple eyepieces with a single Zhumell Zoom
- Multi-coated optical glass.
- A great accessory to any telescope.
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Product Description
Affording you the versatility of a range of magnification powers, Zhumell Zoom eyepieces allow you to adjust your viewing power without having to swap out eyepieces. The 7-21mm eyepiece will allow you to adjust the focal length of the eyepiece to any length within the listed range. An excellent alternative to purchasing a number of eyepieces, Zhumell Zoom eyepieces will enable to extend the magnification rang of your telescope without needing to pay for multiple eyepieces.
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