Camera problems

I bought a new camera-free drive in his computer showed that very obscure, but the picture is very dark.Where people go to get a clear change, a lot of light.In the end what is the reason for this?

problems it may be light, the driver may be the problem, you may not transfer camera.tried to drive under the new.Good luck! Not set, set up in the last election in – low-light.More light on the image.