For all Swarovski telescopes. All eyepiece lenses are 100 % watertight. The fully adjustable eyecup with its large diameter opens up the full field of vision even for eyeglass wearers, providing a very comfortable viewing feel. All eyepieces are fitted with an integrated, quick-release lens cover. The new S-lenses also come with the unique SWAROTOP coating for bright and contrast-rich images, whatever the light conditions.