Celestron Ultima Edge 30mm 2" Eyepiece – Flat Field, Wide View, Premium Optics
If you're looking for a wide-field eyepiece that delivers pinpoint stars across the entire field of view—even with fast telescopes—then the Celestron Ultima Edge 30mm 2" eyepiece deserves a serious spot in your kit. This premium wide-angle eyepiece combines modern optical design with excellent build quality, offering a sharp, immersive experience whether you're cruising the Milky Way or framing extended deep-sky objects.
Sharp From Edge to Edge – Even in Fast Scopes
The Ultima Edge series lives up to its name with a flat-field optical design that minimizes field curvature, keeping stars tack-sharp across the entire 70° apparent field. Many wide-field eyepieces struggle at the edges, especially in fast focal ratio scopes, but the Ultima Edge keeps the whole view crisp and clean—no need to refocus or fight off coma or astigmatism.
This makes it an ideal pairing for modern fast Newtonians, Schmidt-Cassegrains, refractors, and Dobsonians down to f/5 and even faster systems. It's also an excellent match for coma correctors or field flatteners, making it a versatile tool for both visual observers and those who occasionally dabble in afocal imaging.
Long Eye Relief and Comfortable Viewing
The 30mm Ultima Edge offers a generous 22mm of eye relief, making it extremely comfortable for extended viewing sessions. Eyeglass wearers will appreciate the full field accessibility without strain, and the rubber eyecup can be left up or folded down as needed. The large 2" format provides an expansive view without tunnel vision, giving you that “spacewalk” experience without distortion.
Fully Multi-Coated and Blackened for Maximum Contrast
Celestron coats every air-to-glass surface with their proprietary fully multi-coated optics, ensuring excellent light transmission across the visual spectrum. Internal lens edges are blackened to reduce stray light and preserve contrast, especially critical when observing faint nebulae or galaxies near bright stars or skyglow. The result is a high-contrast image with true-to-life color and better definition of subtle details.
Built for Standard 2" Focusers and Filters
The Ultima Edge 30mm uses a standard 2" barrel that fits securely in any 2" focuser or diagonal. The barrel is threaded to accept 2" filters, allowing seamless use of nebula filters, light pollution reducers, or planetary contrast filters. Its robust housing and precision-machined components provide a solid, confidence-inspiring feel, whether you're observing from your backyard or at a remote dark sky site.
Ideal Targets and Telescope Pairings
At 30mm focal length, this eyepiece excels at wide-field viewing. It's perfect for:
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Sweeping star clouds in Cygnus, Sagittarius, and Auriga
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Framing large nebulae like the North America Nebula, Veil Nebula, or Rosette
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Capturing open clusters like the Double Cluster, M44, or the Pleiades
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Giving you full context around extended galaxy groups or larger Messier objects
It performs beautifully in refractors, Newtonians, and SCTs, especially when you want a rich-field experience or need to locate faint fuzzies with the aid of a wider field before switching to higher magnification.
Whether you're a seasoned observer or just upgrading your kit, the Celestron Ultima Edge 30mm 2" eyepiece is a top-tier choice that balances wide-field performance, comfort, and build quality at a price that competes with far more expensive eyepieces. It's the kind of eyepiece that stays in your diagonal longer than you expected—because the view is just that good.
