Hi everyone, this is Jojo from Panoview, IP wireless Megapixel fisheye supplier in China. As I saw all your guys' quotes, it is the truth that fisheye now is not mature enough, but it did have a lot of advantages, like its 360/180 super wide angle view, WDR function, E-PTZ.
Except that, our own software can work as NVR, in other words, NVR is optional, and you only need PC for storage.
Some guys are concerning about night visison issue, our fisheye camera is with IR function, and we have another solution, like we add white light as fill-in light, so there will extra light to support night function.
Hope this will be little helpful for your understanding about fisheye camera. Thanks.