₹18,500.00INR
Premium wide-field, high-clarity eyepiece for immersive planetary & deep-sky observing
The Ultima Edge 15mm Flat Field Eyepiece is a high-performance Ultra Flat Field (UFF), parfocal eyepiece designed for astronomers who demand pinpoint-sharp stars, excellent contrast, and edge-to-edge clarity. Featuring a sophisticated 8-element optical design, fully multi-coated lenses, and a generous 65° apparent field of view, this eyepiece delivers breathtaking views of the Moon, planets, star clusters, nebulae, and galaxies.
Designed to “see the whole picture,” Ultima Edge eyepieces provide a uniformly sharp and flat image from the center right to the field edge—dramatically reducing field curvature and distortion compared to conventional eyepieces.
15mm focal length offers versatile medium-to-high power magnification
Wide 65° apparent field of view for immersive, space-walk-style observing
Ideal for lunar detail, planetary observing, globular clusters, and compact deep-sky objects
8 lens elements in 5 groups with proprietary optical design
Fully multi-coated optics for superior brightness, contrast, and color fidelity
Excellent performance across fast and slow telescope optics
Optimized for both visual astronomy and observational precision
The Ultima Edge 15mm is designed with observer comfort in mind:
Generous 16mm eye relief – comfortable for eyeglass and non-eyeglass wearers
Fold-down rubber eyeguard for flexible eye positioning
Wide field without eye strain, even during extended viewing sessions
Crafted from high-grade aluminum with a black anodized finish, this eyepiece is both durable and elegant. A molded rubber grip ring ensures secure, non-slip handling—even during cold or gloved observing nights.
1.25″ (31.75mm) barrel fits all standard 1.25″ focusers and diagonals
Internally threaded barrel accepts standard 1.25″ filters (M28.5 x 0.6)
Lightweight yet robust for perfect telescope balance
Spend less time refocusing and more time observing. The Ultima Edge series is parfocal, allowing you to swap between Ultima Edge eyepieces with minimal or no refocusing, making your observing sessions smoother and more efficient.
Note: The Ultima Edge 24mm is not parfocal. Parfocality applies only within the Ultima Edge line and not with eyepieces from other brands or series.
Focal Length: 15mm
Barrel Diameter: 1.25″ (31.75mm)
Eyepiece Type: Wide-Field Flat Field
Apparent Field of View: 65°
Field Stop Diameter: 19.6mm
Optical Design: Proprietary
Lens Elements / Groups: 8 / 5
Optical Coatings: Fully Multi-Coated
Eye Relief: 16mm
Parfocal: Yes (within Ultima Edge line)
Filter Threads: 1.25″ (M28.5 x 0.6)
Eye Guard: Fold-down rubber
Body Material: Aluminum
Weight: 5.
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