Specifications – Nikon 8x42 Monarch HG Binoculars User Manual
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Specifications
Type: Dach prism central focusing type
Model
8Ч30
10Ч30
8Ч42
10Ч42
Magnification (×)
8
10
8
10
Effective diameter of objective
lens (mm)
30
30
42
42
Angular field of view (real) (˚)
8.3
6.9
8.3
6.9
Angular field of view (apparent) (˚)*
60.3
62.2
60.3
62.2
Field of view at 1,000m/yd. (m/ft)
145/435
121/362
145/435
121/362
Exit pupil (mm)
3.8
3.0
5.3
4.2
Brightness
14.4
9.0
28.1
17.6
Eye relief (mm)
16.2
15.2
17.8
17.0
Close focusing distance (m/ft)
2/6.6
2/6.6
2/6.6
2/6.6
Length (mm/in.)
119/4.7
119/4.7
145/5.7
145/5.7
Width (mm/in.)
126/5.0
126/5.0
131/5.2
131/5.2
Depth (mm/in.)
47/1.9
47/1.9
56/2.2
56/2.2
Weight (g/oz.)
450/15.9
450/15.9
665/23.5
680/24.0
Interpupillary distance
adjustment (mm/in.)
56-74
2.2-2.9
56-74
2.2-2.9
56-74
2.2-2.9
56-74
2.2-2.9
Structure
Waterproof (up to 5 m (16.4 ft) for 10 minutes) and nitrogen gas filled
* The number calculated by the formula [tan ω' = Γ × tanω ]: Apparent field of view: 2ω', Magnification: Γ ,
Real field of view: 2ω