properties Construction typeroof bendingWaterproofYesFilled with nitrogenYesPupil spacing56 – 79 mmPupils focal distance17 mmOculars for wearer of glassesYes Dimensions Dimensions129 x 135 x 51 mmWeight600 g Glass

properties Construction typeroof bendingWaterproofYesFilled with nitrogenYesPupil spacing56 – 79 mmPupils focal distance19 mmOculars for wearer of glassesYes Dimensions Dimensions129 x 135 x 51 mmWeight634 g Glass

properties Construction typeroof bendingWaterproofYesFilled with nitrogenYesPupil spacing65 – 74 mmPupils focal distance22 mmOculars for wearer of glassesYes Dimensions Dimensions141 x 176 x 65 mmWeight1,038 g

properties Construction typeroof bendingWaterproofYesFilled with nitrogenYesPupil spacing56 – 74 mmPupils focal distance18 mmOculars for wearer of glassesYes Dimensions Dimensions116 x 109 x 42 mmWeight367 g Glass

s, positive values correct long-sightedness. The dioptre is equal to the reciprocal value of the focal length of a lens measured in metres: a power of +5 dpt therefore has a reciprocal length of 1/5 metres [...] centimetres. What is long-sightedness? In the case of long-sightedness, the eyeball is too short. The focal point of the eye is behind the retina. Your near vision is then blurred, e.g. when reading. When the [...] dness. What is short-sightedness? In the case of short-sightedness, the eyeball is too long. The focal point of the eye is in front of the retina and your distance vision will be blurred. The eye is not