General

Model

10x25 Blackhawk
8x42 Oceana
10x40 Blackhawk

Manufacturer

Barska
Celestron
Barska

Amazon rating

3.5
3.5
3.5

Customer reviews on Amazon

214
25
214

Basic Info

Type

Monoculars
Monoculars
Monoculars

Optical specifications

Prism Type

BaK-4 Roof

Magnification

10x
8x
10x

Objective Lens Diameter

25mm
42mm
40mm

Angle of View

5.8
7
6

Field of View

303' at 1000 yd (101 m at 1000 m)
376' at 1000 yd (183 m at 1000 m)
315' at 1000 yd (105 m at 1000 m)

Exit Pupil Diameter

2.5 mm
5.25 mm
4 mm

Eye Relief

11 mm
18 mm
17.5 mm

Minimum Focus Distance

13 ft (4 m)
42.6' (13 m)
13 ft (4 m)

Interpupillary Adjustment

Dioptric Correction

Focus Type

Physical specifications

Waterproof

Fogproof

Power Source

Dimensions

1.25 x 1.25 x 4.25 (3.2 x 3.2 x 10.8 cm)
6 x 2 x 2" (15.2 x 5.1 x 5.1 cm)

Weight

5 oz (142 g)
12 oz (340 g)
10 oz (283.5 g)

Tripod Socket

Packaging Info

Box Dimensions (LxWxH)

5.0 x 2.2 x 1.9"
7.9 x 4.4 x 2.8"
7.0 x 2.5 x 2.4"

Package Weight

0.35 lb
1.1 lb
0.9 lb