Magnification    11-33 x
Diameter, Objective Lens    50 mm
Type of Prism (type)    Porro BK-7
Prism Coating, (yes/no)    yes
Lens Coating    Fully multi-coated
Focus System, Cent/Ind/Fix    Central
Focusing Lens, Eye/Obj/Int    Internal
Diameter, Exit Pupil    4.5-1.5 mm
Eye Relief    .59-.47/15-13 in/mm
Field of View    3-1.47 degrees
Field of View    157.2-77.1 ft@100yd
Field of View    52.4-25.7 m/1000m
Distance, Minimum Focusing Distance    7.5/2.3 ft/m
Relative Brightness    20.25-2.25
Twilight Index    23.45-40.62
Resolution    2.3 arcseconds
Waterproof    yes
Nitrogen Purged    yes
Fog Proof    yes
IP Rating (waterproof)    IP67 - waterproof 1m/3ft for 1 hr
Eyecup system    twist-up
Tripod Mount    1/4 in
Operating Temperature    0-120/ -17 to 49 F
Dimensions    286/81/120 mm
Weight    22.5 oz