Nikon stereoscopic optics with continuous variable zoom magnification of 4.5x to 20x make these colposcopes an excellent choice. ZoomScope features a unique overhead suspension system that provides unobstructed access to the operative site. It may also be converted to an operating microscope. ZoomStar offers the same optics on a center post. It is a more compact unit for the budget and space conscious. These colposcopes offer optional foot pedal power zoom and focus to free both hands.Video and digital imaging capabilities are available.