AmScope LED Trinocular Biological Compound Microscope 40X-2000X 40X-2000X eight widefield magnification settings with great flatness and contrast images Backward nosepiece allocates spacious room for comfortable viewing and operating Mechanical stage with coaxial coarse & fine focusing and Abbe condenser with diaphragm & iris Sturdy metal framework w/ built-in LED Illumination system Trinocular port for adding photo or video capability