Leupold BX-5 Santiam HD 10x42 Binoculars GrayLeupold BX 5 Santiam HD 10x42 Binoculars Gray are Leupold's top of the line full size binoculars. The BX 5 10x42 uses HD objective glass and Leupold's Twilight Max HD Light Management System of advanced prisms and lens coatings to produce a crisp, bright image with greatly reduced chromatic aberration and very high contrast. The large eyepieces are designed for maximum long term viewing comfort. The chassis is of an open bridge design with a well