Binocular Microscope Designed to meet the basic requirements of rountine work at an economical costs * Sturdy long lasting and precision built with many professional advanced features * Objective: Acromatic Parfocal color coded * AS3070: 4X 10X 40X lenses * AS3071: 10X 40X 100X lenses * AS3000: 4X 10X 40X 100X lenses *