Leupold BX-2 Alpine HD 8x42 vs Leupold BX-2 Alpine HD 10x42
Quick take: The Leupold BX-2 Alpine HD 8x42 costs $20 less; the Leupold BX-2 Alpine HD 10x42 reaches farther (10x vs 8x); the Leupold BX-2 Alpine HD 8x42 has a wider field of view (394 vs 342 ft @ 1000 yds).
Field of view, to scale
Top-down view · drawn to true scale — no exaggeration
Which one to buy
Treestand or open ridge? Leupold has discontinued both BX-2 Alpine HD models, so you're choosing from remaining stock, and for most hunters the answer is the 8x42, which is also $20 cheaper. The Leupold BX-2 Alpine HD 8x42 shows 394 ft at 1000 yards against 342, has a 5.25mm exit pupil against 4.2mm, and 18mm of eye relief against 15mm. Owners of the 10x42 themselves say its eye relief is snug for glasses and point glasses wearers to the 8x42. Weight, 24.3 oz, and close focus, 13.5 ft, are identical.
Owners describe the shared platform: ED-type glass, dielectric prism coatings, a locking diopter, waterproofing that held up in coastal Alaska rain, and Leupold's lifetime guarantee with US service. Owners of the Leupold BX-2 Alpine HD 10x42 add that its low-light coatings stretch glassing time at dawn and dusk and that it handles low sun better than a Vortex Diamondback HD, but also report purple fringing in high-contrast scenes, edges that soften in the outer 20% of the view, and warranty repairs that take 6-8 weeks. The 8x42's owners note that its sharpness gain over Leupold's cheaper McKenzie line is real but small, and that close focus is unremarkable.
The 10x42 earns its place glassing long distances in open country. For timber, treestands and first and last light, the 8x42's wider, brighter view is the better tool.
Leupold BX-2 Alpine HD 8x42
The better Alpine for most hunters, especially in timber or in glasses: wider, brighter, longer eye relief and $20 cheaper.
Leupold BX-2 Alpine HD 10x42
For long-distance glassing in open country, by a hunter who doesn't wear eyeglasses.
| Spec | Leupold BX-2 Alpine HD 8x42 | Leupold BX-2 Alpine HD 10x42 |
|---|---|---|
| Approx. price | ~$230 | ~$250 |
| Use case | Hunting | Hunting |
| Magnification | 8x | 10x |
| Objective | 42mm | 42mm |
| Exit pupil | 5.25mm | 4.2mm |
| Field of view | 394 ft @ 1000 yds | 342 ft @ 1000 yds |
| Eye relief | 18mm | 15mm |
| Close focus | 13.5 ft | 13.5 ft |
| Prism | Roof | Roof |
| Glass | HD | HD |
| Coating | Fully Multi-Coated | Fully Multi-Coated |
| Weight | 24.3 oz | 24.3 oz |
| Dimensions | 5.5 x 5.0 in | 5.6 x 5.0 in |
| Warranty | Lifetime | Lifetime |
Feature comparison
Leupold BX-2 Alpine HD 8x42
- ✓ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✓Locking Diopter
Leupold BX-2 Alpine HD 10x42
- ✓ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✓Locking Diopter
What birders say
Leupold BX-2 Alpine HD 8x42
- ✓Adds ED-type glass, dielectric prism coatings, and a locking diopter over the entry McKenzie line for only about $60-130 more
- ✓Hands-on reviewers call the view crisp and distortion-free, with bright, accurate color from the BAK4 prism system
- ✓Verifiably sharper than the McKenzie in side-by-side viewing, per travel reviewers who tested Leupold's lines against each other
- ✓Real-world weather testing backs the waterproof/fogproof claims - one reviewer used it in Alaska's temperate-rainforest drizzle without issue
- ✓Ships with Leupold's GO Afield shoulder harness/case that clips to your body, an accessory step up from binoculars in this bracket
- ✓Oversized eyepieces and easy one-handed focus earn comfort praise for long wildlife-watching sessions
- ✓Light and packable for a full-size 42mm, with a durable rubber-armored magnesium-framed build
- ✓Leupold's lifetime guarantee with US-based Oregon service, repeatedly cited by owners as a reason to buy it over import-brand rivals
- ✗The optical gain over the much cheaper BX-1 McKenzie is real but marginal - reviewers say you need a side-by-side comparison to notice it
- ✗It sits in a brutally competitive bracket, and shoppers on forums cross-shopping the Vortex Diamondback HD and Nikon Prostaff P7 don't treat it as a runaway winner
- ✗Leupold's published specs for the line have shifted across versions, which has left forum users asking basic questions about its prism and construction details
- ✗Close focus is unremarkable, so it's not the pick for butterflies or feeder-distance viewing
- ✗Edge-of-field performance doesn't get the specific praise that its center sharpness does in hands-on reviews
- ✗The brand's budget lines are import-made, so you're paying partly for the Leupold name and warranty rather than US-made glass
- ✗Some owners report Leupold's budget-line diopters and clarity trail Vortex equivalents when compared directly
- ✗Leupold now sells it for about $230, which undercuts the Maven C.1, whose direct-to-consumer pricing still buys stronger glass
Leupold BX-2 Alpine HD 10x42
- ✓Repeatedly called out on hunting forums as one of the best sub-$300 buys - owners say the glass 'feels like a higher class' than the price suggests
- ✓Bright, punchy image in early morning and late evening light - Leupold's Twilight Max coatings genuinely stretch usable glassing time at dawn and dusk
- ✓Excellent flare resistance - in side-by-side tests against the Vortex Diamondback HD, the Alpine handled low sun and backlit scenes noticeably better
- ✓Lightweight magnesium housing keeps it around 24.3 oz, comfortable to carry on all-day hunts without a chest harness feeling mandatory
- ✓Oversized, smooth focus knob that's easy to find and turn with gloves on - a small thing hunters mention appreciating in the field
- ✓Fully waterproof and fogproof build that owners report shrugging off rain and rough truck-and-pack treatment
- ✓Backed by Leupold's lifetime guarantee, and the brand's reputation for standing behind products carries real weight with hunters
- ✓Three-position locking twist-up eyecups work reliably with or without sunglasses
- ✗Visible chromatic aberration (purple fringing) in high-contrast scenes - side-by-side comparisons found more color fringing than the cheaper Vortex Diamondback HD
- ✗Edge-of-field softness is the line's most-cited optical flaw - the sweet spot is good but the last 20% of the view goes fuzzy
- ✗Some hunters who compared them directly felt the Diamondback HD was a touch sharper in the center, which stings given the Alpine often costs more
- ✗Leupold warranty turnaround is reported at 6-8 weeks versus about 2 weeks for Vortex - the guarantee is great, the wait is not
- ✗15mm of eye relief on the 10x42 is tight for eyeglass wearers - the 8x42 version is friendlier if you glass with glasses
- ✗342 ft field of view is wide for a 10x42, though the 8x42 sibling's 394 ft is easier for finding game
- ✗The step up to Leupold's own BX-4 Pro Guide is significant, which makes some buyers feel the BX-2 is a stopgap rather than a keeper
- ✗Crowded price bracket - Nikon Monarch M5 and Vortex Diamondback HD both undercut it on sale, so it's rarely the obvious pick
Leupold BX-2 Alpine HD 8x42 vs Leupold BX-2 Alpine HD 10x42: common questions
Should I choose the Leupold BX-2 Alpine HD 8x42 or 10x42 for treestand hunting?▾
The 8x42. Owners call treestand and timber hunting its best use: 8x is steady offhand, the 394 ft field picks up movement in cover, and the 5.25mm exit pupil stays bright at first and last light. The 10x42 is for longer, open-country distances.
Are the Leupold BX-2 Alpine HD 8x42 and 10x42 still sold?▾
Both are discontinued, so you would be buying remaining stock. Leupold's lifetime guarantee still applies, though owners report repairs taking 6-8 weeks, and the 10x42 has a newer successor in Leupold's line worth comparing.