out of focus

Hello, I am trying to set up my B52IR-Z12E-S2 (from Andy) to get the right depth-of-focus at night. Some plates come out OK, others are completely blurred. Things work well during the day, and I did focus the camera on a stopped car at night, so I suspect it's a depth-of-focus issue? Currently...

We have 5 of the DS-2CD4324FWD-IZHS8 cameras, I upgraded the firmware on 2 of them from 5.2.0 to 5.3.0 without any problems. When I upgraded the 3rd camera, all seemed to go well but now the picture / view is out of focus and I can't get it back into focus via the web console. Am I going to...