Leupold BX-2 Alpine HD 10x42 vs Leupold BX-3 Alpine HD 10x42
Quick take: The Leupold BX-2 Alpine HD 10x42 costs $50 less.
Field of view, to scale
Top-down view · drawn to true scale — no exaggeration
Which one to buy
Leupold has discontinued the BX-2 Alpine HD 10x42 and carried the Alpine HD name up a tier with the BX-3, now $300 against the BX-2's $250. The field stays at 342 ft at 1000 yards, but the Leupold BX-3 Alpine HD 10x42 focuses to 6.2 ft instead of 13.5, nudges eye relief to 16mm from 15mm, moves to a magnesium body and weighs 22.6 oz against 24.3. Check Leupold's current specs before assuming the BX-2's ED glass, phase and dielectric coatings, locking diopter and nitrogen purging carried over.
Owners give a clear picture of what the Leupold BX-2 Alpine HD 10x42 does well and badly. The strengths are brightness at dawn and dusk from Leupold's Twilight Max coatings, flare control in low sun that beat a Vortex Diamondback HD in direct tests, an oversized glove-friendly focus knob and locking eyecups. The weaknesses are visible purple fringing in high-contrast scenes, edges that go soft in the outer 20% of the view, eye relief that's snug for glasses, and warranty repairs that owners report taking 6-8 weeks.
A remaining new BX-2 at $250 is still a good low-light hunting binocular if you don't need close focus. For anyone who wants butterflies and feeders in range, or a lighter body, the BX-3's close focus and lower weight are worth the $50, though nothing yet shows whether it fixes the BX-2's fringing and soft edges.
Leupold BX-2 Alpine HD 10x42
Discontinued, but a remaining new one at $250 is still a bright dawn-and-dusk hunting binocular with strong flare control.
Leupold BX-3 Alpine HD 10x42
The current Alpine HD: much closer focus, a lighter magnesium body and slightly more eye relief, for $50 more.
| Spec | Leupold BX-2 Alpine HD 10x42 | Leupold BX-3 Alpine HD 10x42 |
|---|---|---|
| Approx. price | ~$250 | ~$300 |
| Use case | Hunting | Hunting |
| Magnification | 10x | 10x |
| Objective | 42mm | 42mm |
| Exit pupil | 4.2mm | 4.1mm |
| Field of view | 342 ft @ 1000 yds | 342 ft @ 1000 yds |
| Eye relief | 15mm | 16mm |
| Close focus | 13.5 ft | 6.2 ft |
| Prism | Roof | Roof |
| Glass | HD | HD |
| Coating | Fully Multi-Coated | Fully Multi-Coated |
| Weight | 24.3 oz | 22.6 oz |
| Dimensions | 5.6 x 5.0 in | 5.7 x 5.0 in |
| Warranty | Lifetime | Lifetime |
Feature comparison
Leupold BX-2 Alpine HD 10x42
- ✓ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✓Locking Diopter
Leupold BX-3 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 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 10x42 vs Leupold BX-3 Alpine HD 10x42: common questions
What changed from the Leupold BX-2 Alpine HD 10x42 to the BX-3 Alpine HD 10x42?▾
The BX-3 keeps the 342 ft field but focuses far closer, 6.2 ft against 13.5 ft, weighs 22.6 oz against 24.3 oz, and moves to a magnesium body with 16mm of eye relief. It also costs $50 more.
Is the Leupold BX-2 Alpine HD 10x42 still worth buying now that it is discontinued?▾
At $250 new, it can be, especially for hunting at first and last light. Owners praise its low-light brightness and flare control, but they also report purple fringing, soft edges and slow warranty turnaround. If you want close focus for nature watching, the BX-3 is the better pick.