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Vortex Viper HD 10x42 specs and field of view

A 341 ft field of view puts the Viper HD 10x42 at place 29 of 87 among 10x42 models, above the 336 ft median. Eye relief is 17 mm.

Field of view
341 ftat 1,000 yd
Eye relief
17 mm
Close focus
6 ft
Weight
24.9 oz
Exit pupil
4.2 mmcalculated

Why pick it

  • 341 ft view, wider than the typical 336 ft
  • 17 mm eye relief, enough for glasses
  • Focuses as close as 6 ft
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Viper HD 10x42: width of view at 1,000 yd, against the median of the 87 10x42 models.
Viper HD 10x42: width of view at 1,000 yd, against the median of the 87 10x42 models.

Who the Viper HD 10x42 suits

For eyeglass wearers there is 17 mm of eye relief, and close subjects can be framed from 6 ft. Exit pupil works out to 4.2 mm.

At 24.9 oz it matches the 24.9 oz median for 10x42, and its maker list band is $500 to $1,000.

Viper HD 10x42 is one choice among many, and the top binoculars compared covers the most popular ones. Viper HD 10x42 is one of 87 models in the 10x42 binoculars comparison. Vortex lists it in the $500 to $1,000 price band, alongside the models in best binoculars under $1,000.

Viper HD 10x42 specifications

Viper HD 10x42 figures as Vortex prints them; rows marked * are calculated from the 10x42 size.

Viper HD 10x42 specifications
Magnification10x
Objective lens42 mm
Field of view341 ft at 1,000 yd (114 m at 1,000 m)
Angular field of view6.5°
Apparent field of view65° *
Eye relief17 mm
Close focus6 ft (1.8 m)
Eye spacing range55 to 74 mm
Weight24.9 oz (706 g)
Length5.6 in (142 mm)
Width4.9 in (124 mm)
Fog-proofing gasArgon
Tripod adaptableYes
Focus systemCenter focus
Maker list price$500 to $1,000
Exit pupil4.2 mm *
Twilight factor20.5 *
Relative brightness17.6 *

* Calculated from the size, not printed by the maker.

Viper HD 10x42 against other 10x42 binoculars

Viper HD 10x42 shows 341 ft at 1,000 yd, at or above the 336 ft median of the 87 10x42 models in the chart. At 24.9 oz it is at or under the 24.9 oz median weight for the size.

10x42 binoculars by field of view at 1,000 yd, widest first, from the makers' figures.

Viper HD 10x42 and its nearest rivals

Viper HD 10x42 next to the 10x42 models closest to it in maker list price, with the best figure in each column in bold.

ModelField of viewEye reliefClose focusWeightExit pupilMaker list priceAmazon
Vortex Viper HD 10x42 341 ft 17 mm 6 ft 24.9 oz 4.2 mm $500 to $1,000 Check price on Amazon
Steiner T1042 315 ft 16 mm 6 ft 26 oz 4.2 mm $500 to $1,000
Burris Signature HD 10x42 314 ft 8.2 ft 23.2 oz 4.2 mm $500 to $1,000 Check price on Amazon
Steiner Predator 10x42 324 ft 16 mm 6.6 ft 26.3 oz 4.2 mm $500 to $1,000

Other sizes of the Viper HD

Vortex makes the Viper HD in 4 sizes; a larger front lens adds brightness and weight, and more magnification narrows the view.

ModelSizeField of viewEye reliefClose focusWeightExit pupilAmazon
Vortex Viper HD 10x42 10x42 341 ft 17 mm 6 ft 24.9 oz 4.2 mm Check price on Amazon
Vortex Viper HD 8x42 8x42 409 ft 18 mm 6 ft 24.5 oz 5.3 mm Check price on Amazon
Vortex Viper HD 10x50 10x50 346 ft 16 mm 8 ft 28.4 oz 5 mm Check price on Amazon
Vortex Viper HD 12x50 12x50 288 ft 16 mm 8 ft 28.8 oz 4.2 mm Check price on Amazon

Lists that include the Viper HD 10x42

Vortex binoculars

Viper HD 10x42 questions

Viper HD 10x42: does it work with glasses?

Viper HD 10x42 has 17 mm of eye relief, which meets the 16 mm the RSPB advises for people who wear glasses.

Viper HD 10x42: what does 10x42 mean?

Viper HD 10x42 magnifies 10 times through 42 mm front lenses, which works out to an exit pupil of 4.2 mm, the width of the beam of light that reaches each eye.

Viper HD 10x42: how wide is the view?

Viper HD 10x42 shows a view 341 ft wide at 1,000 yd, at or above the 336 ft median of the 87 10x42 models in the chart.

Viper HD 10x42: can it go on a tripod?

Viper HD 10x42 is tripod adaptable according to Vortex, so it accepts a binocular tripod adapter.