best network camera model to use with video tools

Hi, i wish to buy a network camera to use with video tools. I don't know which one, so i ask users that tested some to tell me how your model works, in particular referred to:

• latency time. If there's some latency, which model has less latency, how many ms of frames
• manual setting of exposure and focus
• not-deforming image
• width of the area seen by the camera
• possibility to mount different lenses
• absence of noise in the image

thanks

michele