DECA HEAD MICROSCOPE Eyepieces PL10x/22 eyepieces (pair), high eyepoint, with rubber cup (on main head) and field number 20 (on discussion heads) Head Trinocular observation head (main head) and binocular (discussion heads), inclined 30° and rotatable 360°. Diopter adjustment on left eyepiece. Interpupillary adjustment 55-75 mm.  Multi-viewing device (10 simultaneous observers). Discussion LED pointer (arrow) under the main head.