See the whole picture with Ultima Edge. These flat-field eyepieces were designed to provide an ultra-sharp, ultra-clear, crisp image from the center all the way to the edge of the field of view. The 24mm Ultima Edgeeyepiece features fully multi-coated optics and an 8- element lens design, maximizing light transmission. The Ultima Edge24mm has a generous 65 field of view perfect for viewing planets, stars and the Moon's surface. This eyepiece provides good mid-power magnification, perfect for viewing the Moon's surface and most deep sky objects. Body The 24mm Ultima Edgeeyepiece's main housing is machined from high grade aluminum with a black anodized outer surface. Its 1.25" mounting barrel is internally threaded to accept standard 1.25" filters and adapters. It is compatible with 1.25" star diagonals and focusers. On the exterior of the eyepiece, you will find a uniquely designed, molded rubber grip ring for non-slip handling during observing sessions. Viewing through the 24mm Ultima Edgeeyepiece is comfortable for both eyeglass wearers and non-eyeglass wearers alike, thanks to the rubber eyecups and long eye relief of 29mm.