cindyliu20101209

Hello, host. If you use in inside, the dome camera is ok. and how long between the camera and DVR is not important, the most important is that： 1. Do you need to see color or B/W object 2. how long of the distance you need to be? it depend on the Focal lens also. the focal lens larger, you will be see wider and longer a little. 3. What is the Horizontal Resolution you need ? 420TVL, 480TVL, 500TVL 520TVL.... or more If you need, you can reference the below camera is interesting you? http://www.lbtech.com.cn/en/product_more1.asp?id=286&pid=12 (long distance camera )..... More information ,you also can contact me : cindy@lbtech.com.cn or MSN: cindyliu172217267@163.com . We are the camera factory..............