top of page

Celestron 10x42 BAK-4 Outland X water proof multicoated Binocular (Green) weather proof roof prism


he green 10x42 Outland X Binoculars from Celestron feature multicoated optics, BAK4 Roof Prisms, a wide angle of view, and weather-proof construction with rubber armoring. While the multicoated lenses increase transmission and image brightness, the Roof Prisms made of BAK4 optical glass preserve true colors. The wide 5.6° angular field of view allows you to see a linear field of 293' at a distance of 1000 yards, and the center focus with a diopter allow seeing crisp details as close as 14.8'. These binoculars also have a 56 to 74mm interpupillary adjustment range, a 4.2mm exit pupil and 14mm eye relief.

In addition to optical performance features, the Outlander X presents a number of convenience and construction highlights. The binoculars' housing is nitrogen-purged, waterproof, and fogproof, with a smooth green rubberized armoring to ensure a non-slip grip. For easy focusing, there is a large knurled center focus knob and a ribbed diopter ring on the right eyepiece. To accommodate anyone with glasses, the eyepieces have twist-up eyecups. If you want to attach the binoculars to a tripod, use the threaded hole under the front center cup with an optional adapter.

Also included with the binoculars are a soft neoprene carry pouch, a strap, and protective objective lens cups.

Optical Performance

42mm objective diameter

Multicoated elements improve image brightness

BAK4 Roof Prisms preserve true color

Wide angle viewing: 5.6°

Use and Handling

Center focusing adjustment

Diopter adjustment: ±3

Interpupillary range: 56 - 74mm

Eye relief: 14 mm


Nitrogen-purged waterproof and fogproof

Smooth rubberized armoring provides sure grip

Tripod adaptable with an optional tripod mount


Prism Type Roof (BAK4)


Magnification 10x

Objective Lens Diameter 42 mm

Angle of View 5.6° (Actual)

Field of View 294' @ 1000 yd / 98 m @ 1000 m

Minimum Focus Distance 14.8' / 4.5 m

Exit Pupil Diameter 4.2 mm

Eye Relief 14 mm

Interpupillary Adjustment 56 to 74 mm / 2.2 to 2.9"

Diopter Adjustment -3 to +3

Focus Type Center


Fogproof Yes, Nitrogen Filled

Water Resistance Waterproof


Dimensions 5.8 x 5 x 2.1" / 147.3 x 127 x 53.3 mm

Weight 22 oz / 623.7 g

Packaging Info

Package Weight 2.05 lb

Box Dimensions (LxWxH) 7.323 x 6.614 x 3.071"

Celestron 10x42 BAK-4 Outland X water proof multicoated Binocular (Green) weathe


    Related Products