Delivers 7X to 40X continuous zoom magnification. An extra wide field of view of 24 mm at 10X with clear and sharp images for detecting inclusions. Full 360°-rotating head. Darkfield attachment includes an adjustable iris diaphragm. This microscope features a superb set of illumination options including a bright, 24 watt overhead halogen bulb; daylight fluorescent lighting fixture; and a transmitted light. All three can be operated together or separately.