APM offers a whole range of high quality binoculars.These include 50mm, 70mm, 80mm, 100mm, 110mm, 120mm and soon also 150mm binoculars.Particularly noteworthy are the APO binoculars.These are of exceptionally good quality -no color error, very good, razor sharp and also clear picture.The large glasses are often used for astronomical observations.The smaller ones are universally applicable. New: All ED and Non ED binoculars are waterproof and filled with Nitrogen !!!