Nikon PROSTAFF 7 Manuel D'utilisation page 6

Specifications
En
Fr
Model
Es
Magnification ( x )
Pt
Effective diameter of objective lens (mm)
Angular field of view (real) (°)
*Angular field of view (apparent) (°)
Field of view at 1,000m/yds. (m/ft.)
Exit pupil (mm)
Brightness
Eye relief (mm)
**Close focusing distance, approx. (m/ft.)
Interpupillary distance adjustment (mm)
Length (mm/in.)
Width (mm/in.)
Weight (g/oz.)
Type
* The number calculated by the formula [tan ω' = Γ x tan ω ]: Apparent field of view: 2ω' , Magnification: Γ, Real
field of view: 2ω
** Without diopter adjustment
6
8x42
8
42
6.3
47.5
110/330
5.3
28.1
19.3
4.0/13.1
56-72
175/6.9
129/5.1
665/23.5
Roof prism central focusing
10x42
10
42
6.0
55.3
105/314
4.2
17.6
15.4
4.0/13.1
56-72
172/6.8
129/5.1
665/23.5