Theory:Stereo Microscope Drawtube:Trinocular Product name:BD-45T1 7-45X trinocular digital stereomicroscope with HDMI camera Eyepiece:WF10X Objective:0.7X-4.5X Magnification:7X-45X(MAX 180X) Illuminati1n:LED Illumination Camera:2MP HDMI camera Application:Industrial Inspection, education Warranty:1 Year