Magnification 8xobjective Lens Diameter 42 Mmeye Relief 17 Mmexit Pupil 5.25 Mmlinear Field of View 393 Feet/1000 Yardsangular Field of View 7.5 Degreesclose Focus 6 Feetinterpupillary Distance 58-75 Mmheight 6.25 Incheswidth 5.2 Inchesweight 23.8 Oz