Celestron Ultima Edge – 30mm Ultra Flat Field Eyepiece (2″)

Celestron Ultima Edge – 30mm Ultra Flat Field Eyepiece (2″)

Premium low-power, ultra-wide flat-field eyepiece for breathtaking deep-sky views

The Ultima Edge 30mm Flat Field Eyepiece is the flagship 2″ Ultra Flat Field (UFF), parfocal eyepiece in the Ultima Edge series, designed for astronomers who want maximum true field of view, edge-to-edge sharpness, and exceptional viewing comfort. With an advanced 9-element optical design, fully multi-coated optics, and an expansive 70° apparent field of view, this eyepiece delivers stunningly crisp, distortion-free images across the entire field.

Available from Modern Telescopes – India’s largest telescope network, the Ultima Edge 30mm is the ultimate choice for deep-sky observing, Milky Way sweeps, large nebulae, star clouds, and wide lunar vistas, especially with Dobsonians, refractors, and wide-field SCTs.

🌌 Ultra-Flat, Ultra-Wide Performance – See More of the Sky

Engineered to let you truly “see the whole picture,” the Ultima Edge 30mm minimizes field curvature and off-axis aberrations, delivering pinpoint stars from the center to the edge—even in fast optical systems.

• 30mm focal length provides low-power, bright, rich-field views

• Huge 70° apparent field of view for immersive, space-walk-style observing

• Ideal for large nebulae, open clusters, galaxies, Milky Way scanning, and the Moon’s surface

This eyepiece excels at framing expansive deep-sky objects that smaller-field eyepieces simply can’t capture.

🔭 Advanced 9-Element Optical Design

• 9 lens elements in 5 groups using a proprietary Ultra Flat Field design

• Fully multi-coated optics for excellent light transmission and high contrast

• Bright, sharp images with excellent color fidelity across the field

• Optimized for visual astronomy and wide-field deep-sky observation

👓 Long-Lasting Comfort for Extended Sessions

The Ultima Edge 30mm is built for relaxed viewing during long observing nights:

• Generous 22mm eye relief – comfortable for eyeglass wearers

• Fold-down rubber eyeguard for flexible eye placement

• Large exit pupil and wide field ensure effortless, strain-free viewing

🛠 Precision-Machined 2″ Aluminum Body

The eyepiece body is machined from high-grade aluminum with a durable black anodized finish, giving it both strength and a premium feel.

• 2″ (50.8mm) mounting barrel for maximum light throughput

• Internally threaded barrel accepts standard 2″ filters (M48.5 × 0.6)

• Molded rubber grip ring ensures secure, non-slip handling during observing

• Robust build balanced for large focusers and mounts

🔄 Convenient Parfocal Design

Spend less time refocusing and more time observing. The Ultima Edge eyepieces are parfocal, allowing quick swaps between focal lengths with little to no refocusing, making observing sessions smoother and more efficient.

Note: The Ultima Edge 24mm is not parfocal. Parfocality applies only within the Ultima Edge series and not with eyepieces from other brands or ranges.

📐 Technical Specifications

• Focal Length: 30mm

• Barrel Diameter: 2″ (50.8mm)

• Eyepiece Type: Wide-Field Ultra Flat Field (UFF)

• Apparent Field of View: 70°

• Field Stop Diameter: 30.4mm

• Optical Design: Proprietary

• Lens Elements / Groups: 9 / 5

• Optical Coatings: Fully Multi-Coated

• Eye Relief: 22mm

• Parfocal: Yes (within Ultima Edge line)

• Filter Threads: 2″ (M48.5 × 0.6)

• Eye Guard: Fold-down rubber

• Body Material: Aluminum

• Weight: 23.8 oz (674.7g)

• Dimensions: 116 × 60 × 60 mm

⭐ Why Buy from Modern Telescopes?

✔ India’s largest and most trusted telescope & astronomy accessories store
✔ Authorized source for genuine Celestron eyepieces
✔ Expert guidance for beginners and professional astronomers
✔ Nationwide delivery with dependable after-sales support