We have a Hikvision DS-7608NI-E2 / 8P NVR connected to 4 HIkvision camera's (2 DS-2CD2055FWD-I 2.8mm, 1 DS-2CD2T55FWD-I5/I8 4mm and 1 DS-2CD4A26FWD-IZHS/P). The system is used to monitor the roadway entrance to our development. We have had no luck getting the camera's to clearly pickup the...