Take in all nature has to offer with the Nikon Aculon A30 10 x 25 Binoculars. These binoculars are designed with multicoated, lead- and arsenic-free Eco-Glass lenses to provide bright, clear images during your outdoor adventures. The compact, lightweight construction and ergonomic design make the binoculars comfortable to handle, while the center-focus knob offers quick and easy adjustments. Roof prism.