Model Number

2.5x 3.0x 3.5x

2.5 x is the most popular model. It offers the widest field of view and longest depth of focus. It has excellent clear view and great optical capability to provide the operator with the optimal magnification while providing extended field of view
Items: 250S, 250R, 250L, 250XL
Power: 2.5X
Working distance: 340mm(S),420mm(R), 500mm(L),550mm(XL
Depth of view: 80mm (S); 90mm (R); 110mm (L); 120mm(XL)
Field of view: 90mm (S); 100mm (R); 110mm (L); 120mm(XL)
Weight: 42g
Frames: Ni-alloy or Titanium


3x is designed for persons that need more magnification, it also offers comfortable frames
with adjustable gel nose bridge
Items: 300S, 300R, 300L, 300XL
Power: 3.0X
Working distance: 340mm(S),420mm(R), 500mm(L),550mm(XL
Depth of view: 60mm (S); 80mm (R); 90mm (L); 100mm(XL
Field of view: 90mm (S); 100mm (R); 110mm (L); 120mm(XL)
Weight: 48g
Frames: Ni-alloy or Titanium


3x is designed for persons that need more magnification, it also offers comfortable frames
with adjustable gel nose bridge
Items: 350S, 350R, 350L, 350XL
Power: 3.5X
Working distance: 340mm(S),420mm(R), 500mm(L),550mm(XL
Depth of view: 60mm (S); 80mm (R); 90mm (L); 100mm(XL)
Field of view: 55mm (S); 60mm (R); 65mm (L); 70mm(XL)L)
Weight: 52g
Frames: Ni-alloy or Titanium