The 8x42 Aurora BGA VHD Binoculars from Opticron feature premium design and construction, including field-flattening technology, high-quality ED glass objective lenses, phase-corrected prisms with Oasis prism coating, and anti-reflective multicoating on all air/glass surfaces. They have a wide 8.1° angle of view and the minimum focus distance of just over six feet. The Aurora BGA VHDs are waterproof, fogproof, and fitted with a tripod adapter socket.