The Super Barium eyepieces are standard on most SkyWatcher binoculars. Extremely affordable price, not to be underestimated performance characterizes these models. They are three-piece, Kellner-arranged eyepieces with one lens element containing barium glass material for improved image quality. Despite their low price, they have an anti-reflection coating, a filter thread and a rubber eyecup for more comfortable viewing. They have a field of view of about 50 degrees and are recommended for use primarily in low-brightness binoculars.