that these binoculars make objects appear eight times closer than they would when viewed by the naked eye and the objective lenses have a diameter of 42 mm. The greater this value, the more light can be admitted
anti-reflection coating on all air/lens surfaces optimises “light movement” through the binoculars to the eye. For the highest vision requirements, most models have an intricate multi-layer coating on all lens
anti-reflection coating to optimise the "light movement" (transmission) through the binoculars to the eye. In this case, the entire lens is coated. Magenta or blue coating: a magnesium fluoride coating is
