B1-223E-SP (4X, 10X, 40X) Trinocular head, 30º inclined, 360º rotating (3 step Light split 100:0/0:100/30:70) Widefield eyepieces WF10X/18mm Quadruple revolving nosepiece Semi-Plan objectives SP 4X 10X ,40X S Coaxial coarse and fine focusing system 1 * 1 items