The Explore Scientific 5X Focal Extender (1.25") delivers extreme magnification for serious planetary and lunar observation while preserving the eye relief and optical quality of your favorite eyepieces. Instead of switching to short, uncomfortable focal length eyepieces, this extender lets you achieve 5X magnification using more ergonomic, long-eye-relief designs — perfect for eyeglass wearers or extended viewing sessions.
Engineered for fast telescopes and high-detail targets, this precision optical tool uses fully multi-coated (EMD) lenses and edge-blackened optics to ensure maximum brightness, contrast, and clarity. Whether you’re observing Saturn’s rings, splitting double stars, or capturing planetary detail, this extender brings everything closer — with sharper, more comfortable views.
CA Residents: Prop 65 WARNING(S)
⭐ Features & Benefits
- 5X magnification of any compatible 1.25" eyepiece
- Maintains eye relief — ideal for eyeglass users
- EMD-coated lenses enhance light transmission and image brightness
- Edge-blackened optics reduce glare and increase contrast
- Perfect for fast f/ratio telescopes and high-power observations
- Improves performance of existing eyepieces for greater versatility
- Durable, precision-machined construction
🌟 Who It’s For
- Planetary observers seeking high detail and clarity
- Lunar and double-star enthusiasts needing extreme magnification
- Eyeglass wearers who prefer comfortable, long-eye-relief eyepieces
- Amateur astronomers using short focal length telescopes
🎯 What You’ll Be Able to See
- Crisp lunar features, including craters, rilles, and shadows
- Planetary details like Jupiter’s cloud belts and Saturn’s Cassini Division
- Tight binary stars and other high-resolution targets
- Enhanced resolution for planetary astrophotography
🎒 What’s Included
- Explore Scientific 5X Focal Extender (1.25")
- Top and bottom protective dust caps
Specs
| Item Number | FE05–125 |
|---|---|
| Barrel Size | 1.25-inch |
| Length | 96mm |
| Width | 45mm |
| Weight | 260 grams / 9.2 oz |
Warranty Information
This product is covered by a Limited One-Year USA Warranty, valid when registered within 60 days of purchase. To activate your warranty, please visit the Explore Scientific website and complete the registration form at: