Digital Microscope, Eyepiece Type Monocular, Microscope Type Compound, Stand Type Standard, Light Source LED, Optical Field of View 1.8 mm, Optical Magnification 10X to 200X, Maximum Magnification Capability 10X to 200X, Base Dimensions 5 29/32 in x 8 43/64 in, Working Distance 21 mm, Eyepiece Protractor No, Features Supplied with Software, Includes Calibration Rule (Graduation 0.1 mm), Focus Support, Software CD