AmScope 40X-1000X 3W LED Siedentopf Trinocular Darkfield and Brightfield Compound Microscope A high quality darkfield and brightfield microscopy system 4 darkfield and 4 brightfield power settings up to 1000x Dry darkfield and brightfield Abbe condensers included Widefield optics; Abbe condenser with Iris diaphragm Backward nosepiece allocating spacious operating room