Podofo Optical Zoom 500 Times Electron Microscopy 8 Light USB Digital Microscope Type: The electron microscope,weight:300 g,Scope: industrial ancient calligraphy and painting appraisal,supported language:Chinese (simplified), Chinese (traditional), English; Can choose other languages. Sense Organ: Imported chip,main control chip: special master 16 bit DSP,Magnification: 50-500,Product color: black frosted, UV black, other colors need can be customized. Photo/Video: Built-in,secondary light source:Built-in eight white LED lights,Static resolution:640x480-1600x1200(can be adjusted according to requirements accordingly),Ontology appearance size 112 mm (long) 33 mm (diameter). Minimum Object Distance: Manually adjustable 0 mm to 40 mm,Image Size:Standard 640 * 480,fixed base:Metal stents ,Single packing weight:380g. System Support WIN XP/VISTAWIN 7 Both 32-bit and 64 - bit,power supply USB5V DC),computer interface:USB 2.0 & USB 1.1,