Magnification:16x-48x;                           OBJ.Lens DIA:65mm;                                  Prism Type:BAK4;                                    Field of view: 3.15-1.56;                            Exit Pupil: 3.2-1.10mm;                           Exit Relief: 19.5-18mm;                             Optical Coating: Full Multi Coated; Waterproof IPX7; Nitrogen Filled; Floating on the water