Bushnell Prime 10x42 vs Nikon Action EX 8x40
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Quick take: The Bushnell Prime 10x42 reaches farther (10x vs 8x); the Nikon Action EX 8x40 has a wider field of view (430 vs 304 ft @ 1000 yds); the Bushnell Prime 10x42 gathers more light with a larger 42mm objective.
Field of view, to scale
you2505007501000 yds
Distance200 yds
Bushnell Prime 10x425.8°
61 ft wide at 200 yds ≈ 1.5 school buses
Nikon Action EX 8x408.2°
86 ft wide at 200 yds ≈ 2.1 school buses
Top-down view · drawn to true scale — no exaggeration
| Spec | Bushnell Prime 10x42 | Nikon Action EX 8x40 |
|---|---|---|
| Approx. price | ~$160 | ~$160 |
| Rating | — | — |
| Use case | General Purpose | General Purpose |
| Magnification | 10x | 8x |
| Objective | 42mm | 40mm |
| Exit pupil | 4.2mm | 5.0mm |
| Field of view | 304 ft @ 1000 yds | 430 ft @ 1000 yds |
| Eye relief | 15.2mm | 17.2mm |
| Close focus | 6 ft | 16.4 ft |
| Prism | Roof | Porro |
| Glass | Standard | Eco-Glass |
| Coating | Fully Multi-Coated | Fully Multi-Coated |
| Weight | 22.5 oz | 30.1 oz |
| Dimensions | 5.5 x 5.0 in | 5.4 x 7.4 in |
| Warranty | Limited Lifetime | Limited Lifetime |
Feature comparison
Bushnell Prime 10x42
- ✗ED Glass
- ✓Phase-Corrected
- ✗Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✗Locking Diopter
Nikon Action EX 8x40
- ✗ED Glass
- ✗Phase-Corrected
- ✗Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✗Locking Diopter