General

Model

10x25 Blackhawk
10x40 Blackhawk
Optical Inc 6x18 T

Manufacturer

Barska
Barska
Zeiss

Amazon rating

3.7
3.7
4.3

Customer reviews on Amazon

213
213
3

Basic Info

Type

Monoculars
Monoculars
Monoculars

Optical specifications

Prism Type

Magnification

10x
10x
6x

Objective Lens Diameter

25mm
40mm
18mm

Angle of View

5.8
6
6.9

Field of View

303' at 1000 yd (101 m at 1000 m)
315' at 1000 yd (105 m at 1000 m)
360' (120 m at 1000 m)

Exit Pupil Diameter

2.5 mm
4 mm
3.0mm

Eye Relief

11 mm
17.5 mm
15mm

Minimum Focus Distance

13 ft (4 m)
13 ft (4 m)
1.0' (0.3 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)
1.2 x 3.7" (30 x 94mm) WxH

Weight

5 oz (142 g)
10 oz (283.5 g)
0.13 lb (58g)

Tripod Socket

Packaging Info

Box Dimensions (LxWxH)

5.0 x 2.2 x 1.9"
7.0 x 2.5 x 2.4"
5.7 x 4.1 x 2.7"

Package Weight

0.35 lb
0.9 lb
0.5 lb