Celestron Ultima Edge – 10mm Flat Field Eyepiece (1.25″)

Celestron Ultima Edge – 10mm Flat Field Eyepiece (1.25″)

High-power, ultra-sharp wide-field eyepiece for planets, Moon & detailed deep-sky observing

The Ultima Edge 10mm Flat Field Eyepiece is a premium 1.25″ parfocal Ultra Flat Field (UFF) eyepiece engineered to deliver exceptionally crisp, contrast-rich views from the center all the way to the edge of the field. Designed for serious visual astronomers, this eyepiece combines a proprietary 5-element optical design, fully multi-coated optics, and a comfortable viewing experience—perfect for high-magnification planetary, lunar, and small deep-sky targets.

Available from Modern Telescopes – India’s largest telescope network, the Ultima Edge 10mm is an ideal upgrade for Newtonian reflectors, Dobsonians, refractors, Schmidt-Cassegrains (SCTs), and Maksutov telescopes using standard 1.25″ focusers or star diagonals.

🌌 Ultra-Flat, Edge-to-Edge Sharpness

“See the whole picture” with Ultima Edge. This eyepiece is purpose-built to provide pinpoint stars and uniform focus across the entire 60° apparent field of view, minimizing field curvature and astigmatism common in standard eyepieces—especially noticeable at higher magnifications.

• 10mm focal length delivers high-power magnification for fine lunar detail, planetary features, double stars, and compact deep-sky objects

• Wide 60° AFOV creates an immersive view while keeping targets comfortably in frame

• Fully multi-coated optics maximize light transmission and contrast

🔭 Advanced Optics, Comfortable Viewing

• 5 lens elements in 4 groups with proprietary optical design

• Generous 16mm eye relief—excellent for eyeglass wearers

• Fold-down rubber eyeguard for flexible eye positioning

• Parfocal design lets you switch between Ultima Edge eyepieces with minimal refocusing

  Note: The Ultima Edge 24mm is not parfocal. Parfocality applies within the Ultima Edge line only.

🛠 Precision-Built Body & Universal Compatibility

Crafted for durability and ease of use, the eyepiece body is machined from high-grade aluminum with a black anodized finish. A molded rubber grip ring ensures secure, non-slip handling—even with gloves during cold nights.

• 1.25″ (31.75mm) barrel fits all standard 1.25″ focusers and star diagonals

• Internally threaded barrel accepts standard 1.25″ filters (M28.5 x 0.6)

• Lightweight design (80g) for excellent balance on small and large telescopes

📐 Technical Specifications

• Focal Length: 10mm

• Barrel Size: 1.25″ (31.75mm)

• Eyepiece Type: Wide-field Flat Field

• Apparent Field of View: 60°

• Field Stop Diameter: 14.7mm

• Optical Design: Proprietary

• Lens Elements / Groups: 5 / 4

• Optical Coatings: Fully Multi-Coated

• Eye Relief: 16mm

• Parfocal: Yes (within Ultima Edge line; 24mm excluded)

• Filter Threads: 1.25″ (M28.5 x 0.6)

• Body Material: Aluminum

• Eye Guard: Fold-down rubber

• Weight: 2.82 oz (80g)

• Dimensions: 58 × 36.5 × 36.5 mm

⭐ Why Buy from Modern Telescopes?

✔ India’s largest and most trusted telescope & astronomy accessories store
✔ Authorized source for genuine Celestron eyepieces
✔ Expert advice for beginners and advanced observers
✔ Nationwide shipping & reliable after-sales support