General

Model

Echo 10 30x21 Zoom
10x42 Monarch 7

Manufacturer

Brunton
Nikon

Amazon rating

3.0
4.5

Customer reviews on Amazon

21
114

Basic Info

Type

Monoculars
Binoculars

Optical specifications

Prism Type

Roof

Magnification

10.0 - 30.0x
10x

Objective Lens Diameter

21 mm
42mm

Angle of View

6.7

Field of View

178 - 10 ft (54 - 3 m) at 1000 yd
351' at 1000 yd / 116.53 m at 1000 m

Exit Pupil Diameter

2.4 - 1.8 mm
4.2

Eye Relief

12 mm
16.4

Minimum Focus Distance

10 ft (3 m)
8.2' / 2.50 m

Interpupillary Adjustment

Dioptric Correction

Focus Type

Center

Physical specifications

Waterproof

Fogproof

Power Source

Dimensions

4.25 x 1.25" (11 x 3 cm)
5.6 x 5.1"

Weight

3.2 oz (91 g)
23.6 oz

Tripod Socket

Packaging Info

Box Dimensions (LxWxH)

7.4 x 6.1 x 2.75"
7.1 x 6.7 x 4.0"

Package Weight

0.35 lb
2.15 lb