AmScope 40X-1600X 3W LED Siedentopf Trinocular Darkfield and Brightfield Compound Microscope A high quality darkfield and brightfield microscopy system 8 darkfield and 8 brightfield power settings up to 1600x Dry darkfield and brightfield Abbe condensers included Widefield optics; Abbe condenser with Iris diaphragm Backward nosepiece allocating spacious operating room