Magnification Range 20x-40x
Obj. lens diameter 67mm
Exit pupil 3.35mm / 1.65mm
Field of View (FOV)
2.7° / 1.9°
Apparent FOV (FOV x Power)
54° / 76°
Field of view (ft/1000 yds) 141ft /100ft
Brightness 11.22 / 2.72
Twilight factor 36.6 / 51.8
Multi Position Eyecups Y/N Yes
Eye relief 17mm - 16mm
Eye piece construction 5 group 7 element
Near focus 3m
Dimension WxHxD 14"x3.6"x3.4"
Weight 60.0 oz
Prisms type Schmidt-Pechan
Prism reflective coating type Dielectric Coating
Phase correction coating Yes
Lens coating Oilphobic + flat multi
Pressure tested to what pressure 1m for 30min. (IPX7)
Storage temperature
-40°~158°F
Functional temperature
-13°~140°F
Frame material Aluminum / Polymer / Magnesium
Internal gas purged
Nitrogen (except for eyepiece)
Objective filter thread
Focus system Vari-speed focusing system
Lens type Fluorite glass
Origin Japanese components assembled in the US