• Explore Scientific 1.25-Inch 3x Focal Extender — Triple the Magnification of Any 1.25-Inch Eyepiece
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Explore Scientific

Explore Scientific 1.25-Inch 3x Focal Extender — Triple the Magnification of Any 1.25-Inch Eyepiece

Explore Scientific 1.25-Inch 3x Focal Extender — Triple the Magnification of Any 1.25-Inch Eyepiece

$139.99
$139.99
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The Explore Scientific 3x Focal Extender (1.25") triples your telescope's magnification, turning any 1.25" eyepiece into a high-power one for detailed views of the Moon and planets. Its telecentric multi-element design keeps the light path parallel, so magnification stays consistent and images stay sharp — a step up from a simple Barlow lens.

Who it's for

Planetary and lunar observers (and imagers) who want a big jump in magnification from their existing eyepieces. Want to understand power? See our guide to telescope magnification explained.

Key features

  • 3× magnification — triples the power of any 1.25" eyepiece
  • Telecentric multi-element design for consistent magnification and sharp images
  • Fully multi-coated optics for bright, high-contrast views
  • Great for high-power planetary detail, visually and for imaging
  • Standard 1.25" barrel fits most telescopes and diagonals

Specifications

Type Telecentric focal extender (Barlow-type)
Magnification 3×
Barrel 1.25"
SKU FE03-125

Frequently asked questions

How is a focal extender different from a Barlow?
Its telecentric design keeps light rays parallel for more consistent magnification and better results with filters, binoviewers, and cameras than a simple Barlow.

Will 3× be too much power?
3× is best on nights of steady seeing and with telescopes that can support high magnification. On turbulent nights, a 2× may give a cleaner image.

Can I use it for imaging?
Yes — it's well suited to planetary and lunar imaging where extra image scale helps resolve fine detail.

View full details

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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