7X-90X Track Stand Stereo Zoom Trinocular Microscope with Dual LED Lights 7X-90X Large Zoom Range Magnification Power Super Widefield Optical System Offering Crisp Clear Stereo Images Sturdy Track Stand with Built-in Top and Bottom LED Illuminators 1-1/4" (33mm) Large Field View and 4" (100mm) Working Distance Trinocular Port for Adding Photo or Video Capability