ZABBYS HEAD LOUPE MAGNIFIER ZL-111B-2.75X : Model ZL-111B -2.75X Magnification 2.75X Field of View 80mm Working distance 100mm • Head band mounted magnifier that leaves both hands free to attend to the work. • Provides stereoscopic view which enables excellent manual co-ordination. • Can be swivelled up and out of the field of view when not required. • The lenses have built in prisms that eliminate squinting and eye strain. • Can be worn over spectacles. • Available with inter pupillary distance adjustment , the feature offered only by highest •quality head loupes. • Side visors cut out extraneous glare thus providing cool vision.