AmScope 40X-2500X LED Lab Siedentopf Binocular Compound Microscope with 3-D Double Layer Mechanical Stage Six widefield magnification settings: 40X, 100X, 250X, 400X, 1000X & 2500X Professional 30 degree inclined 360 degree swiveling Siedentopf binocular head Large 3-D double layer mechanical stage with coaxial coarse & fine focusing High quality Abbe condenser with iris diaphragm & filter Powerful single bulb LED illumination with dimmer