Digital Microscope with Stand Features Include... Records photos and video Supplied with geometric software for measurement Built in adjustable LED illuminator Two step adjustable focus with 10X to 200X magnification Image sensor: 1.3 mega pixels Resolution: 1280 x 1024 Dimensions: 1.4173" x 5.0394" (without stand) Power Supply: 5V DV from USB port Package includes... Includes stand Two calibration rules Graduations 0.1mm and 1mm Focus ring supports for 80X/150X and 60X/200X magnification Software CD (requires Windows XP SP2, Vista or Windows 7 operating system)