General

Model

8x42 Oceana
Echo 10 30x21 Zoom

Manufacturer

Celestron
Brunton

Amazon rating

3.3
3.0

Customer reviews on Amazon

24
21

Basic Info

Type

Monoculars
Monoculars

Optical specifications

Prism Type

BaK-4 Roof

Magnification

8x
10.0 - 30.0x

Objective Lens Diameter

42mm
21 mm

Angle of View

7

Field of View

376' at 1000 yd (183 m at 1000 m)
178 - 10 ft (54 - 3 m) at 1000 yd

Exit Pupil Diameter

5.25 mm
2.4 - 1.8 mm

Eye Relief

18 mm
12 mm

Minimum Focus Distance

42.6' (13 m)
10 ft (3 m)

Interpupillary Adjustment

Dioptric Correction

Focus Type

Physical specifications

Waterproof

Fogproof

Power Source

Dimensions

4.25 x 1.25" (11 x 3 cm)

Weight

12 oz (340 g)
3.2 oz (91 g)

Tripod Socket

Packaging Info

Box Dimensions (LxWxH)

7.9 x 4.4 x 2.8"
7.4 x 6.1 x 2.75"

Package Weight

1.1 lb
0.35 lb