SV135 Zoom Eyepiece for 1.25 Inch Telescopes With 7 To 21mm Adjustable Focal Length And Dielectric Mirror Star Diagonal 6 Element 4 Group Optics Delivers High Contrast Crisp Views And Comfortable Long Viewing Sessions For Astronomy

1.25in Zoom Eyepiece 7-21mm for Telescopes (Single)
✔️ 7-21mm adjustable focal length; 1.25in nosepiece; 90-degree diag.

This 1.25 inch zoom eyepiece is designed for standard 1.25 inch telescopes and is commonly used in amateur astronomy and field observing, providing flexible magnification control during sessions.

✅ 7-21mm adjustable focal length
✅ 1.25in nosepiece fits 1.25in telescopes
✅ 90-degree diagonal for comfortable viewing
✅ Fully multi-coated 6-element 4-group optics
✅ 18mm-16.3mm eye relief for eyeglass wearers

💡 What is a 1.25 inch zoom eyepiece used for in telescope viewing?

A handy tool for quickly adjusting magnification during observing celestial scenes and terrestrial targets.

• Change focal length from 7mm to 21mm without swapping eyepieces
• Fits standard 1.25 inch filters and accessories
• Great for framing objects and tuning contrast with a 90-degree diagonal

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