The Leica EZ4 school microscope (incident light and stereo microscope) with its 4.4:1 zoom is ideal for entry-level microscopy: the subjects of biology, anatomy and chemistry benefit from the bright, long-lasting LED illumination, which no longer requires lamp changes. The LED illumination offers 7 different illumination scenarios with incident, oblique and transmitted light - allowing lighting conditions and contrast to be adjusted to suit almost any specimen. The Greenough system provides a vivid, three-dimensional view. 7 different illumination scenarios provide the right light and contrast for almost any application. Bright LED illumination saves time and money by eliminating the need for lamp changes. The 4.4:1 zoom provides razor-sharp magnification between 8× - 35×. The Greenough optical system provides a vivid 3D display.