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Celestron 8x42 BAK-4 Outland X water proof multicoated Binocular (Green) weather proof roof prism


The green 8x42 Outland X Binoculars from Celestron feature multicoated optics, BAK4 Roof Prisms, a wide angle of view, and weatherproof 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 6.8° angular field of view allows you to see a linear field of 357' at a distance of 1000 yards, and the center focus with a diopter allows you to see crisp details as close as 13.1'. The binoculars have a 56 to 74mm interpupillary adjustment range, 5.3mm exit pupils, and 18mm eye reliefs.

In addition to optical performance features, the Outlander X binoculars present 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 diameter objectives 

Multicoated elements improve image brightness

BAK4 roof prisms preserve true color

Wide angle viewing: 6.8°

Use and Handling

Nitrogen-purged waterproof and fogproof

Smooth rubberized armoring provides sure grip

Tripod adaptable with an optional tripod mount

Center focusing adjustment

Diopter adjustment: ±3

Interpupillary range: 56 - 74mm

Eye relief: 18mm


Prism Type Roof (BAK4)


Magnification 8x

Objective Lens Diameter 42 mm

Angle of View 6.8° (Actual)

Field of View 357' @ 1000 yd / 119 m @ 1000 m

Minimum Focus Distance 13.1' / 3.99 m

Exit Pupil Diameter 5.3 mm

Eye Relief 18 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 lb

Box Dimensions (LxWxH) 7.48 x 6.535 x 3.071"

Celestron 8x42 BAK-4 Outland X water proof multicoated Binocular (Green) weather


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