Magnification 10x 12x
Obj. lens diameter 50mm
50mm
Exit pupil 5mm 4.2mm
Field of View (FOV)
6.5°
5.5°
Apparent FOV (FOV x Power)
65°
66°
Field of view (ft/1000 yds) 341 289
Brightness 25 17.6
Light transmission (%) 94.75% 93.80%
Twilight factor 22.4 24.5
Multi Position Eyecups Y/N Yes
Yes
Eye relief 18.1mm 17.5mm
Near focus 7.5ft 7.5ft
Eye width adjustment 58~74mm
58~74mm
Dimension WxHxD 5.2x6.6x2.3
5.2x6.6x2.3
Weight 30.688 oz
30.688 oz
Lens constr. obj. 3 groups 4 elements (ED)
3 groups 4 elements (ED)
Lens constr. ocular 4 groups 5 elements 4 groups 6 elements
Prisms type Wide Angle
Schmidt-Pechan
Wide Angle
Schmidt-Pechan
Prism reflective coating type Dielectric Coating
Dielectric Coating
ED glass Yes Yes
Lens coating Scratch and Oil Resistant
Scratch and Oil Resistant
Diopter correction (dpt) +/-3
+/-5
Pressure tested to what pressure 1m for 30 min. (IPX7)
1m for 30 min. (IPX7)
Storage temperature
-40°~158°F
-40°~158°F
Functional temperature
-13°~140°F
-13°~140°F
Frame material Magnesium
Magnesium
Internal gas purged Nitrogen
Nitrogen
Tripod Adaptable Y/N Yes Yes
Origin Japanese components assembled in the US
Japanese components assembled in the US