These spherical excellently corrected 2-element ED/SD binoculars offer an extremely high contrast. The eyepieces can be changed by what different magnifications can be achieved. The device includes a pair of eyepieces 37×.
To keep the weight to a minimum, the binoculars housing is made of magnesium. The binoculars are waterproofed, and nitrogen filled against fogging and lens fungus.