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Magnification:20x-60x; OBJ.Lens DIA:60mm; Prism Type:BAK4; Field of view: 2.1-1.08; Exit Pupil: 3.2-1.10mm; Exit Relief: 17-13.5mm; Optical Coating: Full Multi Coated; Waterproof IPX7; Nitrogen Filled Floating on the water