Hey DBArcher, I use the binos that you are asking about, they are a great pair of glasses they are extremely clear and draw in alot of light during low light conditions because of the 80mm lens, the only setback is that they are quite large and heavy, I pack them and a bogen tripod and use a small tripod chair, my pack is on the heavy side but when i sit to glass ,i can sit there for quite a while without getting tired or uncomfortable and i think thats half the battle when you want to spot and stalk.