Bushnell Prime 8x42 vs Pentax Papilio II 8.5x21

Quick take: The Pentax Papilio II 8.5x21 costs $1 less; the Pentax Papilio II 8.5x21 reaches farther (8.5x vs 8x); the Bushnell Prime 8x42 has a wider field of view (389 vs 315 ft @ 1000 yds).

Field of view, to scale

you2505007501000 yds
Distance200 yds
Bushnell Prime 8x427.4°
78 ft wide at 200 yds 1.9 school buses
Pentax Papilio II 8.5x216.0°
63 ft wide at 200 yds 1.6 school buses

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

SpecBushnell Prime 8x42Pentax Papilio II 8.5x21
Approx. price~$150~$149
Rating
Use caseGeneral PurposeGeneral Purpose
Magnification8x8.5x
Objective42mm21mm
Exit pupil5.25mm2.5mm
Field of view389 ft @ 1000 yds315 ft @ 1000 yds
Eye relief16.4mm15mm
Close focus6 ft1.6 ft
PrismRoofPorro
GlassStandardBaK-4
CoatingFully Multi-CoatedFully Multi-Coated
Weight22.2 oz10.2 oz
Dimensions5.5 x 5.0 in4.6 x 4.3 in
WarrantyLimited Lifetime25-Year Limited

Feature comparison

Bushnell Prime 8x42

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

Pentax Papilio II 8.5x21

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