General

Model

Echo 10 30x21 Zoom
Blackhawk 20-60-60mm

Manufacturer

Brunton
Barska

Amazon rating

3.0
4.1

Customer reviews on Amazon

21
177

Basic Info

Type

Monoculars
Monoculars

Optical specifications

Prism Type

Magnification

10.0 - 30.0x
20-60x

Objective Lens Diameter

21 mm
60 mm

Angle of View

20x: 1.7

Field of View

178 - 10 ft (54 - 3 m) at 1000 yd
20x: 91' at 1000 yd / 30.2 m at 1000 m, 60x: 45' at 1000 yd / 14.9 m at 1000 m

Exit Pupil Diameter

2.4 - 1.8 mm
20x: 3.0 mm,60x: 1.0 mm

Eye Relief

12 mm
20x: 18 mm, 60x: 15 mm

Minimum Focus Distance

10 ft (3 m)
23' / 7 m

Interpupillary Adjustment

Dioptric Correction

Focus Type

Physical specifications

Waterproof

Fogproof

Power Source

Dimensions

4.25 x 1.25" (11 x 3 cm)
14.9" / 37.8 cm

Weight

3.2 oz (91 g)
2.9 lb / 1.5 kg

Tripod Socket

Packaging Info

Box Dimensions (LxWxH)

7.4 x 6.1 x 2.75"
17.2 x 9.7 x 7.8"

Package Weight

0.35 lb
7.5 lb