*  Item : 600KS, 600KR, 600KL, 600KXL

*  Power: 6.0X 

*  Working distance: 340mm(S),420mm(R),500mm(L),550mm(XL) 

*  Depth of view: 25mm (S); 25mm (R); 25mm (L); 25mm(XL)

*  Field of View: 40mm (S); 45mm (R); 50mm (L); 55mm(XL)

*  Weight: 85g

*  Frames: Ni-alloy or Titanium