Olympus has introduced the CX21LED clinical microscope with built-in light emitting diode (LED) illumination. Offering consistent long-term performance for biological and medical applications, this cost-effective imaging system can illuminate samples with a similar light intensity to that provided by halogen bulbs. Furthermore, the LED light source produces a more uniform, controllable and stable illumination for high-quality imaging. As an environmentally-friendly and easy-to-use system, this microscope is also ideal for educational use.