General

Model

Solo 10x25
Echo 10 30x21 Zoom
Optics Viper HD 10x42

Manufacturer

Vortex
Brunton
Vortex

Amazon rating

4.3
3.0
4.7

Customer reviews on Amazon

613
21
290

Basic Info

Type

Monoculars
Monoculars
Binoculars

Optical specifications

Prism Type

Roof

Magnification

10x
10.0 - 30.0x
10x

Objective Lens Diameter

25mm
21 mm
42mm

Angle of View

6.1

Field of View

6.0
178 - 10 ft (54 - 3 m) at 1000 yd
319' at 1000 yd / 105.91 m at 1000 m

Exit Pupil Diameter

2.5 mm
2.4 - 1.8 mm
4.2

Eye Relief

14.5 mm
12 mm
16.5

Minimum Focus Distance

16.4' / 4.9 m
10 ft (3 m)
5.1' / 1.55 m

Interpupillary Adjustment

59 - 75 mm / 2.32 - 2.95"

Dioptric Correction

Focus Type

Center

Physical specifications

Waterproof

Fogproof

Power Source

Dimensions

4.4 x 1.8" / 11.2 x 4.6 cm
4.25 x 1.25" (11 x 3 cm)
5.8 x 5.3 x 1.65"

Weight

5.6 oz / 159 g
3.2 oz (91 g)
24.6 oz

Tripod Socket

Packaging Info

Box Dimensions (LxWxH)

5.4 x 2.8 x 2.5"
7.4 x 6.1 x 2.75"
8.75 x 7.3 x 4.1"

Package Weight

0.6 lb
0.35 lb
2.45 lb