Leica 10?42 Trinovid HD Binocular


Phase-Corrected Roof Prisms
Fully Multi-Coated Optics
Wide Angle Viewing: 61?
Short 5.2? Close Focus Distance
Nitrogen-Filled, Water/Fogproof
Lightweight Magnesium Alloy Chassis
Large Center Focusing Knob
Tripod Mountable with Optional Adapter
Twist-Up Click-Stop Eyecups
Includes Adventure Strap Harness System


Leica puts a new spin on their perennial favorite, the 10?42 Trinovid HD Binocular with phase corrected prisms that are coated with highly reflective multi-coatings to increase reflectivity, and anti-reflection fully multi-coated optics to boost light transmission through the lenses. These optical coatings work together to produce high-contrast images with true color rendition and minimal distortion. This optical performance is coupled with a powerful 10x magnification, wide apparent angle of view and generous eye relief to produce an immersive viewing experience.
Complementing the views produced by the Trinovid HD are construction details that make this optic able to stand up to the rigors of a life lived on the trail. First is a lightweight, sturdy, and corrosion-resistant magnesium alloy chassis that makes this binocular light and easy to handle. The body is covered with a textured rubber armor that protects it from bumps and impacts while giving it a slip-resistant grip in cold or wet conditions. Its optical tubes are nitrogen-filled and O-ring sealed to make it waterproof and submersible as well as fogproof when moving between extreme temperature fluctuations. To make handling the Trinovid easier are tethered objective lens covers that flip down and out of the way for observing, plus an ocular rainguard that attaches to the strap. Leica also includes their Adventure Strap system, which is a unique harness system that can be configured multiple ways for easier carrying and handling, while also doubling as a soft carrying bag to protect the binocular when not in use.

Optical Performance

10x magnification
42mm objective lenses
Compact roof prism optical path
P40 phase corrected prism coatings increases contrast and provides true color rendition
HLS (HighLux System): Highly reflective coatings on prisms reduce internal light loss
HDC anti-reflection fully multi-coatings increase light transmission throughout optical path
340? field of view at 1000 yards
Wide 61? apparent angle of view
Short 5.2? close focus distance

Use and Handling

Closed bridge configuration
4-position click-stop twist-up rubber eyecups
Tripod mountable with optional adapter
?4 right-eye dioptric correction
Long 15mm eye relief
4.2mm exit pupil

Construction Details

Lightweight and durable magnesium alloy housing
Black, protective, textured rubber armoring?for a slip-resistant grip
Nitrogen-filled, water and fogproof. Submersible to 13? (4m)
Tethered objective lens caps
Weight: 25.75 oz

Adventure Strap

Water and dirt repellent neoprene
Strap/Harness system also acts as carrying bag
Can be set up in two different bino-harness configurations or as a conventional strap
Harness system relieves neck strain and transfers weight to shoulders

Package Weight
3.55 lbs

Package Dimensions
10.6 x 8.3 x 6.7 in

Prism Type


Objective Lens Diameter

Angle of View
6.1? (actual) 61? (apparent)

340.4? @ 1000 yd / 113.0 m @ 1000 m

Minimum Focus Distance
5.25? / 1.6 m

Exit Pupil Diameter
4.2 mm

Eye Relief
15.0 mm

Interpupillary Adjustment
58.0 ? 76.0 mm / 2.3 ? 3.0?

Dioptric Correction

Focus Type

Tripod Mount
Yes (Adapter Optional)

5.51 x 4.61 x 2.56? / 14.0 x 11.7 x 6.5 cm

25.75 oz / 730.0 g


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