Leupold BX-2 Alpine HD 10x42 vs Leupold BX-4 Pro Guide HD 10x42

Quick take: The Leupold BX-2 Alpine HD 10x42 costs $200 less; the Leupold BX-4 Pro Guide HD 10x42 has a wider field of view (326 vs 310 ft @ 1000 yds).

Field of view, to scale

you2505007501000 yds
Distance200 yds
Leupold BX-2 Alpine HD 10x425.9°
62 ft wide at 200 yds 1.6 school buses
Leupold BX-4 Pro Guide HD 10x426.2°
65 ft wide at 200 yds 1.6 school buses

Top-down view · drawn to true scale — no exaggeration

SpecLeupold BX-2 Alpine HD 10x42Leupold BX-4 Pro Guide HD 10x42
Approx. price~$330~$530
Rating
Use caseHuntingHunting
Magnification10x10x
Objective42mm42mm
Exit pupil4.2mm4.2mm
Field of view310 ft @ 1000 yds326 ft @ 1000 yds
Eye relief15mm16.5mm
Close focus6 ft5.5 ft
PrismRoofRoof
GlassHDHD
CoatingFully Multi-CoatedFully Multi-Coated
Weight23 oz23.4 oz
Dimensions5.6 x 5.0 in5.6 x 5.0 in
WarrantyLifetimeLifetime

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-4 Pro Guide HD 10x42

  • ED Glass
  • Phase-Corrected
  • Dielectric Coating
  • Waterproof
  • Fogproof
  • Image Stabilized
  • Tripod Adaptable
  • Magnesium Body
  • Locking Diopter