watertight.Nitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerably.Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses

waterproof housing and nitrogen filling which prevents fogging of the inner optics when the temperature changes.Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses.Stable tripod

waterproof housing and nitrogen filling which prevents fogging of the inner optics when the temperature changes.Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses.Stable tripod

watertight.Nitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerably.Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses

watertight.Nitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerably.Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses

waterproof housing and nitrogen filling which prevents fogging of the inner optics when the temperature changes.Spectacle eyepieces afford an optimal field of view even when wearing (sun) glasses.Stable tripod

watertightNitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerablySpectacle eyepieces afford an optimal field of view even when wearing (sun) glassesIn

watertightNitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerablySpectacle eyepieces afford an optimal field of view even when wearing (sun) glasseIn

watertightNitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerablySpectacle eyepieces afford an optimal field of view even when wearing (sun) glassesIn

watertightNitrogen filling prevents misting of the internal optics even if the temperature or altitude changes considerablySpectacle eyepieces afford an optimal field of view even when wearing (sun) glassesIn