Combining a high magnification and large objectives, the Celestron 10x42 Ultima Porro Binoculars are an ideal optic for making detailed observations of distant subjects, even in challenging lighting conditions.

The large lenses draw in a generous amount of light and, combined with 10x power, translate to a comfortable exit pupil that will completely cover most pupils in low-light condition at dawn or dusk and when peering into heavy brush or canopies. Complementing these performance features are anti-reflection fully coated optics, a wide field of view, and a traditional Porro prism optical path that all work together to produce an immersive and comfortable observational experience defined by bright, clear high-contrast views with accurate color rendition and a rich depth of field. The wide field of view also helps to mitigate the appearance of visible hand shake that is common with higher power optics, for clearer views.

For long-duration glassing sessions, to reduce arm fatigue, or to eliminate vibrations, this Ultima binocular can be tripod mounted using an optional adapter. The optical tubes are nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging. The chassis is made of a lightweight and durable aluminum alloy and wrapped in a protective slip-resistant synthetic rubber armor. Fold-down rubber eyecups mold themselves to your eye sockets to block stray peripheral light for brighter views without intrusive side glare, and the binoculars' center-focusing wheel is also slip resistant to make precision focusing fast and easy.