Zoom Machine in the current, limited domestic one machine is the bottleneck of the development of auto-focus. Focus on speed and effectiveness are directly affected by the user capture images on the monitor and video site. Good product, can one correctly focused; bad products, when the focus back and forth back and forth, you need three or four times to set focus, or focus on less than "the most clear point." Shenzhen Xin Electronic Technology Co., Ltd. Itanium provide customers with better solutions and services to create greater value for our customers! 
 Contact: Miss Wu QQ: 1272446802 
 Tel: 15889684372 / / / 0755-61124119 
 Website: http://www.xinancctv.com/