Leupold BX-5 Santiam HD 10x42

• 10x42 configuration: This magnification and objective size balance reach and steadiness well, giving the binocular enough power for scanning open country while still remaining practical for woodland edges, birding, and general field use.
• Professional-Grade Optical System: Leupold’s optical platform is built to improve low-light transmission, contrast, and resolution, which helps separate animals or fine feather detail from dark backgrounds during the first and last light of the day.
• Open-bridge roof-prism body: The open-bridge design makes the binocular easier to hold securely with one hand and more comfortable over long sessions, especially when glassing from uneven terrain or carrying it all day.
• Generous eye relief and forgiving eyebox: With 16.60 mm of eye relief and twist-up eyecups, the BX-5 Santiam HD stays comfortable for extended viewing and works better for eyeglass wearers who need a full image without constant repositioning.
• Waterproof, fogproof argon-filled construction: Sealed housing and argon purging help keep the optics clear through rain, cold mornings, and rapid temperature changes, reducing the risk of internal fogging in demanding hunting conditions.

About the Leupold BX-5 Santiam Series

The Leupold BX-5 Santiam series sits in the brand’s upper tier of hunting binoculars and was expanded with 8x42 and 10x42 models in 2018 to complement the larger configurations already in the line. It is built for hunters who spend long periods behind glass, especially when searching for game across broken terrain or at extended distances where image detail and viewing comfort matter as much as raw magnification.

A defining feature of the series is Leupold’s Professional-Grade Optical System paired with the Twilight Max HD light-management system. In practical use, that combination is aimed at improving low-light visibility, preserving contrast, and keeping fine detail easier to read when shadows lengthen or weather turns flat. The series also uses an open-bridge design for a more secure handhold and lower carrying fatigue, while Guard-ion hydrophobic lens coating helps shed water, oils, and dirt so the view stays clearer in wet field conditions. Across the range, the BX-5 Santiam HD family is defined by full-size roof-prism binocular layouts intended for serious glassing rather than occasional use.

About the Leupold BX-5 Santiam HD 10x42

The Leupold BX-5 Santiam HD 10x42 is the most versatile format in the Santiam line for users who want one binocular to cover hunting, bird watching, and general long-distance observation. Its 10x magnification gives a useful step up in detail recognition over 8x models, helping with antler points, animal movement, or distant plumage, while the 42.00 mm objective lenses keep the size manageable for all-day carry. The resulting 4.20 mm exit pupil supports a bright, easy view in mixed light without pushing weight into the larger 50 mm class.

The roof prism system uses a Schmidt/Pechan design, which keeps the binocular compact and easy to pack while maintaining the straight-barrel shape many users prefer for fast handling. Its 113.75 m/1000m field of view is wide enough for scanning slopes, tree lines, and moving birds without feeling overly narrow, and the 1.60 m close focus adds flexibility for nearby observation. A central focusing system with a right-eyepiece diopter makes it easy to tune the image quickly and then maintain sharp focus as distances change.

Comfort is a major part of this model’s appeal. The 16.60 mm eye relief helps eyeglass wearers see more of the full image, while the open-bridge body improves grip security during long glassing sessions. At 663.00 g and 150.00 mm long, it remains substantial enough to feel steady in the hands without becoming burdensome on a chest harness. Fully multicoated lenses, waterproof and fogproof construction, and argon filling round out a binocular designed for repeated field use in changing weather.

About Leupold

Leupold & Volpel was founded in Portland, Oregon, in 1907 by Fred Leupold and Adam Volpel. Today, Leupold & Stevens, Inc. is headquartered in Beaverton, Oregon and remains a family-owned company focused on sport optics for hunting, shooting, and outdoor use. Its catalog covers riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and thermal optics, giving the brand a broad presence across both hunting and tactical categories.

Leupold is especially well known for riflescope development, including the launch of its first riflescope, the Plainsman, in 1947, and the introduction of the Duplex reticle in 1962, a design that became widely established in sporting optics. That background matters in binoculars as well, because the company’s reputation has been built around practical field performance, durable construction, and optics designed for real use outdoors rather than bench-only evaluation.

Main Features

• Magnification: 10.00 x
• Objective lens diameter: 42.00 mm
• Prism type: Roof - Schmidt/Pechan
• Lens coating: Fully Multicoated
• Field of view: 113.75 m/1000m
• Angular field of view: 6.53 °
• Exit pupil: 4.20 mm
• Eye relief: 16.60 mm
• Close focus: 1.60 m
• Focusing system: Central
• Diopter adjustment: Right eye-piece
• Interpupillary distance: 58.00 mm - 74.00 mm
• Body type: Open bridge
• Filled with: Argon
• Waterproof: Yes
• Fogproof: Yes
• Length: 150.00 mm
• Weight: 663.00 g

Warranty

Leupold covers this binocular with a 10-year warranty. This stated period suits a field optic intended for regular outdoor use and adds clear long-term support without relying on undefined warranty language.

In the Box

• GO Afield shoulder strap
• Binocular case
• Lens covers
• Lens cloth