The Leica EZ4 educational stereomicroscope with 4.4:1 zoom for entry level university and college courses such as biology, anatomy and chemistry provides over 20 years of bright LED illumination which saves time and cost of replacement bulbs. 7-way LED illumination system provides incident, oblique and transmitted light for high quality illumination and contrast of any application. Greenough optical system provides a 3 dimensional view of sample.