Past product

BX-4 Mckinley HD 10x42mm

The new BX®-4 McKinley™ HD binocular will not only change the way you see game, it changes the game completely. The HD lenses provide amazing optical returns to deliver the most vivid colors and sharpest picture you can find. And, with full flat field of view, you get it across the entire visual field. Add in Leupold’s legendary rugged dependability, and you may never need another pair of binoculars.

Model Options Starting prices are USA only, and are our Suggested Retail Price.

BX-4 Mckinley HD 10x42mm is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Awesome products I have been purchasing from the leupold family for over 14 years now there customer service is top notch and they stand behind their product with the unbelievable guaranteed warranty keep up the great work .
Date published: 2016-09-08
  • y_2017, m_5, d_23, h_1
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_bx-4-mckinley-hd-10x42mm, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_leupold
  • bvseo_sdk, p_sdk, 3.2.0
  • CLOUD, getContent, 99.65ms

Proprietary Nitrogen Fill Process

Fully Multi coated Lens System

100% Waterproof and Fog Proof

BAK 4 Prisms

Advanced HD™ Lens System

Features extra low dispersion objective lenses paired with rare earth element-coated ocular lenses for superb color rendition and razor-sharp resolution. You get true HD performance in all lighting and weather conditions.

Twist-up Eyecups and Long Eye Relief

Generous eye relief and twist-up eyecups making them easy to use with or without eyeglasses. Eliminates glare and problems with the sun on bright, cloudless days.

Specification Low High
Interpupillary Distance 56.00 74.00
Specification Value
Actual Magnification 10.00 x
Objective Clear Aperture (mm) 42.00 mm
Linear Field of View (ft/1000 yd) 336.00 ft
Linear Field of View (m/1000 m) 112.00 m
Angular Field of View (degrees) 6.40 degrees
Twilight Factor 20.50
Weight (oz) 29.00 oz
Weight (g) 822.00 g
Length (in) 6.10 in
Length (mm) 155.00 mm
Exit Pupil (mm) 4.20 mm
Eye Relief (mm) 20.00 mm
Close Focus Distance 8.20 ft
Close Focus Distance (m) 2.50 m
View All Hunting & Shooting Observation


Length Weight Close
Focus Distance
8.00x 42.00mm 5.80in 22.10oz 10.00ft $194.00
10.00x 42.00mm 5.80in 22.00oz 10.00ft $209.00
8.00x 25.00mm 4.30in 12.70oz 14.10ft $124.00
10.00x 25.00mm 4.30in 12.70oz 14.10ft $139.00
New 6.00x 30.00mm 4.60in 17.00oz 10.00ft $129.00
New 8.00x 30.00mm 4.50in 17.00oz 10.00ft $164.00
New 10.00x 30.00mm 4.50in 17.00oz 11.00ft $194.00
New 10.00x 42.00mm 6.20in 28.00oz 13.50ft $299.00
New 8.00x 32.0mm 4.5in 18.0oz 5.0ft $324.00
New 8.0x 42.0mm 6.0in 23.1oz 7.5ft $389.00
New 10.0x 32.0mm 4.5in 18.0oz 5.0ft $354.00
New 10.0x 42.0mm 6.2in 23.5oz 9.0ft $419.00
New 10.0x 50.0mm 7.5in 29.5oz 12.0ft $469.00
New 12.0x 50.0mm 7.5in 28.8oz 12.5ft $494.00
New 15.0x 56.0mm 8.2in 45.0oz 9.8ft $1,819.00