< SPECIFICATION >
Length 4^3/4 inch
Width 2 inch
Height 3^7/8 inch
Weight 0.45 lb
Power 4 x
Field of View 10°
Exit Pupil Diameter 0.150 inch
Effective Focal Length
   Objective 3.200 inch
   Eyepiece 0.800 inch
Eyepiece Setting -0.75 ~ -1.0 diopter
Clear Eye Distance 0.560 inch