3.5-90X Trinocular Zoom Microscope w/Dual Halogen Light + 3M Camera 3.5X-90X Super widefield continuous zoom magnification Top and bottom lights with separate dimmers 2-1/2" Super widefield of view and 8" working distance Heavy-duty sturdy pillar stand with metal framework 3MP digital camera with advanced editing &amp; measuring software for Windows XP/Vista/7/8/10