Celestron Ultima 10x42mm Porro (72253)
$149.95
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Celestron Ultima 10x42mm Porro (72253)
$149.95
10x42 Magnification
Clear high power optical clarity
BaK-4 Prisms
Enhanced image depth and brightness
Fully Multi-Coated
Maximum optical light transmission efficiency
Wide Field View
Expansive 6.5 degree viewing angle
Waterproof Housing
Nitrogen purged fog resistance protection
13.1ft Close Focus
Detailed close range viewing clarity
Explore Endless HorizonsHigh performance optical clarity anywhere
The Celestron Ultima 10x42mm Porro Prism Binocular delivers exceptionally bright views with its expansive 6.5° field of view and high-grade BaK-4 Porro prisms. Designed for versatile outdoor activities like birding, wildlife observation, and sporting events, these premium optics offer remarkable 3D depth and clarity. With a durable waterproof and nitrogen-purged aluminum housing, it stands up to harsh field conditions with complete reliability.
Unmatched Brightness & DepthClassic design meets modern optical tech
Experience traditional optical craftsmanship elevated by modern technology with the Celestron Ultima 10x42mm Porro Prism Binocular. Featuring fully multi-coated optics, every glass surface maximizes light transmission to ensure high-contrast, razor-sharp imagery even in low-light environments. The classic Porro prism layout provides enhanced triangulation between objective lenses, creating a rich three-dimensional perspective that flat roof-prism designs simply cannot match. Protected by synthetic rubber armor over a lightweight aluminum chassis, this binocular is completely sealed and dry nitrogen filled to eliminate internal fogging. Whether you are tracking fast-moving wildlife or viewing performers on stage, the Ultima 10x42 provides generous eye relief and tripod adaptability for exceptional long-distance comfort.
Technical DataComplete mechanical and optical specs
Magnification
10x
Objective Lens Diameter
42mm (1.65") (circle)
Angular Field of View
6.5°
Linear Field of View
342 ft (114 m) @ 1000 yds (expand)
Exit Pupil
4.2mm (0.16") (disc)
Eye Relief
15mm (0.59") (glasses)
Close Focus
13.1ft (4m) (search)
Interpupillary Distance
50mm - 74mm (1.97" - 2.91") (sliders)
Diopter Adjustment Range
±4
Twilight Factor
20.49
Relative Brightness
18
Lens Coatings
Fully Multi-Coated
Prism Glass Type
BaK-4
Weight
21.9 oz (620 g) (weight)
Environmental Protection
Waterproof
Nitrogen Filled
Yes
Tripod Adaptable
Yes
Dimensions
135mm x 175mm x 52mm (5.3" x 6.9" x 2.0") (box)
Carrying Case
Black woven fabric case with hook-and-loop closure flap
Included Accessories
Case, Neck strap, Eyepiece covers, Tethered objective covers
Precision Optical FeaturesEngineered for clarity and outdoor durability
Porro Prism DesignDelivers enhanced 3D image perception and superior field depth
Wide Field of ViewExpansive 6.5° angle covers 342 ft at 1,000 yards easily
Fully Multi-Coated OpticsMaximizes light transmission for bright and high-contrast views
Close Focus CapabilityDetailed close-up observation down to 13.1 feet
Rugged Waterproof ArmorRubber-coated aluminum body filled with dry nitrogen gas
Eyeglass FriendlyGenerous 15mm eye relief with comfortable fold-down rubber eyecups
Tripod AdaptableBuilt-in mounting threads for extended stationary viewing sessions
Frequently Asked QuestionsEverything you need to know
Are the Celestron Ultima 10x42mm Porro Prism Binoculars waterproof?
Yes, the Celestron Ultima 10x42mm Porro Prism Binocular is fully waterproof and filled with dry nitrogen gas to prevent internal lens fogging in damp outdoor conditions.
Can I use the Celestron Ultima 10x42mm Porro Prism Binocular while wearing eyeglasses?
Absolutely. The Celestron Ultima 10x42mm features generous 15mm eye relief and comfortable fold-down rubber eyecups designed specifically to accommodate eyeglass wearers.
Is a tripod adapter included with the Celestron Ultima 10x42mm Porro Prism Binocular?
The Celestron Ultima 10x42mm binocular is tripod-adaptable and features standard threads, but the tripod adapter hardware is sold separately.
What accessories come included with the Celestron Ultima 10x42mm Porro Prism Binocular?
The package includes an adjustable neck strap, a soft protective carrying case, eyepiece covers, and tethered objective lens covers.
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