Vortex Diamondback HD 10x42 vs Nikon Monarch M5 8x42
vs
Quick take: The Vortex Diamondback HD 10x42 reaches farther (10x vs 8x); the Nikon Monarch M5 8x42 has a wider field of view (362 vs 314 ft @ 1000 yds).
Field of view, to scale
you2505007501000 yds
Distance200 yds
Vortex Diamondback HD 10x426.0°
63 ft wide at 200 yds ≈ 1.6 school buses
Nikon Monarch M5 8x426.9°
72 ft wide at 200 yds ≈ 1.8 school buses
Top-down view · drawn to true scale — no exaggeration
| Spec | Vortex Diamondback HD 10x42 | Nikon Monarch M5 8x42 |
|---|---|---|
| Approx. price | ~$250 | ~$250 |
| Rating | — | — |
| Use case | Birding | Birding |
| Magnification | 10x | 8x |
| Objective | 42mm | 42mm |
| Exit pupil | 4.2mm | 5.25mm |
| Field of view | 314 ft @ 1000 yds | 362 ft @ 1000 yds |
| Eye relief | 15.5mm | 19.5mm |
| Close focus | 5.5 ft | 8.2 ft |
| Prism | Roof | Roof |
| Glass | HD | ED |
| Coating | Fully Multi-Coated | Fully Multi-Coated |
| Weight | 21.5 oz | 21 oz |
| Dimensions | 5.7 x 5.1 in | 5.5 x 5.1 in |
| Warranty | Lifetime (VIP) | Limited Lifetime |
Feature comparison
Vortex Diamondback HD 10x42
- ✗ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✗Locking Diopter
Nikon Monarch M5 8x42
- ✓ED Glass
- ✓Phase-Corrected
- ✓Dielectric Coating
- ✓Waterproof
- ✓Fogproof
- ✗Image Stabilized
- ✓Tripod Adaptable
- ✗Magnesium Body
- ✓Locking Diopter