We have perfected this over the years, ending up with the 960H 700TVL 1/3" Sony CCD image sensors, a matt white finish painted stainless steel bracket/hood to resist rust, 8mm narrow angle 45 degree lens for the rear view camera (to closely match natural distance perception).
This model is fitted with a 4 pin aviation connector (the standard type you mostly see today with the spin locking connectors).