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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
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Description
Explore Scientific 1.25" 3X Focal ExtenderThe Explore Scientific 1. 25" 3x Focal Extender triples your eyepiece magnification in a single step, pushing mid range eyepieces into high power planetary territory while preserving their comfortable eye relief. A 15mm eyepiece becomes a 5mm equivalent sharp, high contrast views of Jupiter's cloud bands and Saturn's ring divisions without squinting through a tiny lens. Built around the same telecentric 4 element optical design used across the entire
The Explore Scientific 1.25" 3x Focal Extender triples your eyepiece magnification in a single step, pushing mid-range eyepieces into high-power planetary territory while preserving their comfortable eye relief. A 15mm eyepiece becomes a 5mm equivalent — sharp, high-contrast views of Jupiter's cloud bands and Saturn's ring divisions without squinting through a tiny lens.
Built around the same telecentric 4-element optical design used across the entire Explore Scientific focal extender line, the 3x delivers flatter fields and sharper edges than conventional Barlow lenses. EMD-enhanced multi-coatings on all air-to-glass surfaces maximize light transmission, and edge-blackened elements suppress internal reflections for clean contrast. Magnification stays consistent regardless of spacing in the optical path.
The lightest and most compact model in the lineup at 249g and 93mm, the 3x adds minimal weight to your focuser assembly. Threaded for standard 1.25" astronomy filters.
Key Features
- 4-element telecentric optical design with EMD-enhanced fully multi-coated optics
- Triples magnification while preserving full eye relief from the base eyepiece
- Lightest and shortest focal extender in the lineup (249g / 93mm)
- Non-marring compression ring clamp and double-tapered insert barrel
- Threaded for 1.25" astronomy filters
Ideal For
- Planetary observers — reach high magnification from a comfortable, long-eye-relief eyepiece without buying a dedicated short-focal-length model
- Compact setups — the smallest and lightest extender minimizes balance shift on lightweight telescopes
- Filling magnification gaps — a single 3x extender with two eyepieces covers six effective focal lengths
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy