Waterproof binoculars 10x magnification objective lens diameter 42mm fully multi coated optics ed extra low dispersion lens glass waterproof fogproof and nitrogen purged extended eye relief for more comfortable viewing tripod compatible crystal clear optics an impressively wide field of view and an ergonomic design all qualities which mirror the elegance and performance that come together in the praktica ambassador fx binoculars revealing image detail you will not find elsewhere these newly de