1.CMOS chip technology. 2.Built-in optical slave. 3.Fan cooled. 4.Auto dump function. 5.Overheating warning. ViewChina Vistarfoto Co,Ltd is a company commmitted to producing high quality products and offer best customer service. Abide by the concept“Make progress day by day” concept,cultivate“Innovative, happy, unit, enterprising” spirit,and built up with “Immediate, true, meticulous,professional ...