The Police used to get me to fit cameras for elderly victims of crime. Often pensioners were being targeted by the local youths. The cameras were fitted as a deterent. From experience I found that they done the complete opposite and the youths would just tighten their hoodies, cover their faces and return to aggravate their victims even more, just because they now had a camera to perform in front of. Neighbours of victims would often approach me as I installed them, threatening me if the camera pointed towards their house. All the cameras I fitted were dummies, but looked like the real thing.
To a potential burglar the camera means cover up, it does little to deter them. If they are prepared to force an entry, you will do little to stop them. You would be better off with a burglar alarm.