2" 30mm 70 Degree Ultima Edge Eyepiece
$299.99
Skip to product information
2" 30mm 70 Degree Ultima Edge Eyepiece
$299.99
Flat-Field Optics
Edge-to-edge pinpoint star clarity
70° Wide FOV
Expansive views of deep sky
9-Element Design
Fully multi-coated glass elements
Long Eye Relief
Comfortable viewing with glasses
Parfocal Convenience
Seamless swapping with minimal focus
2-Inch Barrel
Fits standard two inch focusers
In Stock
Crisp Stargazing PerformanceUltra-sharp views across field
Experience breathtaking astronomical views with the Celestron Ultima Edge 30mm Eyepiece, engineered for high-contrast, flat-field visual performance. Featuring a generous 70° apparent field of view and fully multi-coated 9-element optics, this premium 2-inch telescope eyepiece delivers edge-to-edge razor-sharp views of planetary details, lunar craters, and deep-sky nebulae.
Precision Optical EngineeringDesigned for demanding visual astronomers
The Celestron Ultima Edge 30mm Eyepiece represents a major advancement in flat-field astronomy performance. Machined from high-grade anodized aluminum, the housing features a non-slip molded rubber grip ring and a fold-down rubber eyeguard that pairs with a massive 22mm eye relief for exceptional observer comfort. Inside, the sophisticated 9-element optical layout maximizes light transmission while flattening field curvature, giving stargazers pinpoint star clarity from the center all the way to the perimeter. Thanks to its smart parfocal design, transitioning between other Ultima Edge series eyepieces requires virtually zero refocusing, allowing you to spend more time observing deep-space galaxies and wide star clusters through your stargazing telescope.
Technical SpecificationsDetailed optical and physical measurements
Focal Length
30mm (1.18 in) (ruler)
Barrel Size Diameter
2 in (50.8mm) (circle)
Apparent Field of View
70°
Field Stop Diameter
30.4mm (1.2 in) (aperture)
Eye Relief
22mm (0.87 in) (eye)
Number of Lens Elements
9
Number of Lens Groups
5
Optical Coatings
Fully Multi-Coated
Optical Design
Proprietary Flat-Field
Parfocal
Yes
Filter Threads
2 in (M48.5x0.6-6H) (gear)
Eye Guard
Fold-down rubber
Body Material
High-grade Anodized Aluminum
Weight
23.8 oz (674.7 g) (scale)
Dimensions
116mm x 60mm x 60mm (4.57 x 2.36 x 2.36 in) (ruler)
Key Optical CapabilitiesAdvanced features for deep sky observing
Flat-Field OpticsProvides ultra-sharp edge-to-edge star clarity
9-Element Lens DesignFully multi-coated glass maximizes light transmission
70-Degree Field of ViewOffers expansive views of celestial targets
Long 22mm Eye ReliefEnsures comfortable viewing with or without eyeglasses
Parfocal Lens DesignMaintain focus when swapping within the series
Anodized Aluminum HousingDurable machined body with rubber grip ring
Standard ThreadingInternally threaded for 2-inch telescope filters
Frequently Asked QuestionsEverything you need to know
What telescopes are compatible with the Celestron Ultima Edge 30mm Eyepiece?
The Celestron Ultima Edge 30mm Eyepiece is compatible with any telescope equipped with a 2-inch focuser or a 2-inch star diagonal.
Can I use standard filters with the Celestron Ultima Edge 30mm Eyepiece?
Yes, the 2-inch barrel of the Celestron Ultima Edge 30mm Eyepiece is internally threaded to accept standard 2-inch thread-on astronomy filters.
Is the Celestron Ultima Edge 30mm Eyepiece suitable for eyeglass wearers?
Yes, the Celestron Ultima Edge 30mm Eyepiece features a long 22mm eye relief and a fold-down rubber eyeguard for comfortable viewing while wearing glasses.
What does parfocal mean for the Celestron Ultima Edge 30mm Eyepiece?
Being parfocal means that when swapping the Celestron Ultima Edge 30mm Eyepiece with other eyepieces in the Ultima Edge series, you will not need to readjust focus significantly.