OVL binoviewer with 2x Barlow lens

Designed to fit into a standard 1.25" eyepiece tube.  This binocular attachment features high-quality BaK-4 prisms for clearer, sharper images.  An excellent accessory which helps to reduce eyestrain.  An x2 specially-designed Barlow Lens is included which effectively doubles the magnification of eyepieces used.  Supplied in Aluminium Case.