Detailed Product DescriptionAll lenses and prisms are multilayer_coated for the brightest images;
High-reflection
Mirror-coating prism for bright image;
High_eyepoint design provides a clear field of view, even for eyeglass wearers;
Close focusing distance: 1.5m
Waterproof (up to 5m/16.5 ft. For 5 minutes) and fog_free with nitrogen gas;
Turn-and-slide
Rubber eye
Cups(Aluminum Alloy Support) facilitate easy positioning of eyes at the correct eyepoint;
Rubber armouring for shock resistance and a firm, comfortable grip;
Lightweight body uses fibreglass_reinforced polycarbonate resin
Wide strap Can be fixed to a tripod using optional tripod adaptor.