About this item: 
Super speed 18MP (4912x3684 pixels) USB 3.0 color digital camera with 0.5X reduction lens and 0.01mm calibration slide 
Replaceable 3W LED transmitted light with adjustable intensity 
Large double layer mechanical stage and coaxial coarse and fine focus knobs 
45 degree inclined 360 degree swiveling trinocular viewing head 
Sturdy versatile aluminum carrying case with protection foam