The Skywatcher Planetary eyepieces are ideal for the high magnification required on your telescope when observing fine planetary and lunar detail. The design is based on a modified Plössl. The fully multi-coated, five-lens eyepiece has a field of view of 58 degrees and is characterized by low distortion, high contrast and high comfort during observation. The eyepieces have a foldable and adjustable rubber eyecup and a generous 16mm eye relief, making them comfortable to use even for those who wear glasses. The eyepieces are equipped with knurled rubber grip rings and a thread for standard 1.25″ filters. Scope of delivery: 2.5mm eyepiece with 1.25″ barrel Dust protection caps! Power supply and batteries are not included in the scope of delivery!