Magnification : 20-80x
Ocular Lens : 4G/6E
Objective Diameter (mm) : 25
Angle of View (degree) : 1.7-0.7
Exit-Pupil Diameter (mm): 1.25-0.31
Brightness Index : 1.56-.010
Field m/1000m : 30-13
Min Focusing Distance(m): 4m/at 20x
Weight-OZ/G : 360gm