SMZ-161-BL Greenough zoom optical system Binocular head, 45º inclined, 360º rotating Widefield eyepieces WF10X/20mm 6:1 Zoom ratio, WD=110mm Objective magnification range: 0.75X-4.5X R2GG: Compact incident/transmitted illumination stand Coarse focusing system with tension adjustment 12V/10W incident and 12V/20W transmitted halogen illumination with intensity control Main supply 100V-240V (CE) Black/White and frosted glass stage plates, blue filter and dust cover