Thanks to everyone for the replys. Kiwi, yes I could reduce my fov width,down to half that would probably work. Would a 50mm lens work in that situation, for identification? I do know the individual but it has to be good enuogh for law enforcement to recognise. Also I could change my light source to halogen. I am thinking of using an illuminator so that I can use 950nm IR, maybe an extreme UF100. What are the issues associated with using the higher wavelenth IR? Also what is the best video compression format, JPEG or MPEG?