Nature DX **ED** 8 x 42 binocular

·      Extra-Low Dispersion (ED) objective lenses provide high resolution, high contrast images that are virtually free of optical defects like chromatic aberration (color fringing)

·      Fully multi-coated optics deliver maximum light transmission through the optical path

·      Phase coated BaK-4 prisms produce vivid, true-to-life colors

·      Eyeglass friendly - generous eye relief and sturdy, twist-up eyecups with multiple stops

·      6.5' close focus

·      Tripod adaptable

Celestron’s award-winning Nature DX binocular gets a major upgrade with the addition of ED objective lenses. Nature DX ED’s optical performance rivals that of more expensive binoculars, at a price to fit your budget. 

This versatile, all-around binocular is a great choice for the trail, the stadium, the arena, or just about anywhere you want a close-up view of the action without sacrificing brightness or detail. It’s an especially great companion for nature observation and bird watching, with ED glass that helps you spot the subtlest field markings and a close focus of just 6.5 feet.

ED Objective Lenses

Extra-Low Dispersion (ED) glass virtually eliminates chromatic aberration, also known as color fringing, a visual defect common in binoculars. Nature DX ED delivers razor sharp images, even at the edges of the field of view. ED glass is also known for producing images with outstanding, true-to-life color.

Not all ED glass is created equal. Celestron’s high quality ED glass delivers visibly brighter, sharper images compared to non-ED binoculars. The difference is especially apparent in low light conditions, such as at dawn or dusk.

Coatings and Prisms

Nature DX ED features fully multi-coated optics. A binocular can be considered “fully multi-coated” when all air-to-glass surfaces are coated with multiple layers of anti-reflectivity coatings so that the maximum amount of light passes through the glass to the eye.

The prisms inside Nature DX ED are made of high quality BaK-4 glass with phase coatings applied so that more light is reflected off their internal faces and passes through to the eye.

Taken together, the fully multi-coated lenses and BaK-4 prisms maximize light transmission for the remarkably bright, highly detailed images. The ED objective lenses further enhance these features, especially in low light conditions.

The Body

A durable rubber armored, polycarbonate housing protects your Nature DX ED binoculars from damage without weighing you down. Viewing through Nature DX ED is comfortable for both eyeglass wearers and non-eyeglass wearers, thanks to the durable twist-up eyecups. Twist through multiple click stops to find the position that works best for you. What’s more, the binocular is fully waterproof and filled with dry nitrogen gas to prevent internal fogging of lenses. Nature DX ED can stand up to even the toughest outdoor conditions.

Perfect for a Variety of Uses

Nature DX ED 8x42mm features a close focus of just 6.5 feet, making it perfect for viewing birds, butterflies, plants, or other nearby subjects. For distance viewing, the 8x42 model offers a wide field of view so you can easily follow subjects as they move with less need to move the binoculars.

Ways to Observe

Carry your Nature DX ED on the comfortable included strap. It’s also tripod-adaptable, so you can mount it on any standard photographic tripod for extended viewing or digiscoping (photography through the eyepiece). The tripod adapter is sold separately. The binocular also includes a protective padded nylon case for storage and transport.

General              

Magnification: 8x

Objective Lens Diameter:          42mm (1.65")

Angular Field of View:  7.5°

Linear Field of View (@1000 yds) / @1000 m):  393 ft (129 m)

Exit Pupil:           5.25mm (0.21")

Eye Relief:          17.8mm (0.70")

Close Focus:    6.5 ft (2 m)

Interpupillary Distance (max): 74mm (2.91")

Interpupillary Distance (min):  56mm (2.20")

Diopter Adjustment Range:       ±3

Twilight Factor: 18.33

Relative Brightness:      27.56

Limiting Stellar Magnitude:       Ideal: 10.62

Moderate: 9.62

Poor: 8.62

Lens Coatings: Fully Multi-Coated

Prism Glass (Type):        Bak-4

Prism Coatings:              Phase Coated

Weight:                24.9 oz (705 g)

Environmental Protection:        Waterproof

Nitrogen Filled: Yes

Tripod Adaptable:           Yes

Carrying Case: Padded nylon canvas

Dimensions:     142mm x 128mm x 56mm (5.6" x 5" x 2.2")

Included Items:               Neck strap

Objective lens caps

Rainguard

Carrying case

Lens cloth

Instruction manual

Solar Warning 

Never look directly at the Sun with the naked eye or with this optic. Permanent and irreversible eye damage may result.

Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.

Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.