Hi
Were are using Hikvision Turbo TVI DVrs, DS-2CE56D5T-IT3 Cams
more recently we are finding the bottom 3rd of the screen is a paler colour but more recently the runs have been longer and longer.
Even if you install the camera upside down the issue is at the bottom 3rd of your viewing screen which appears when viewing from Phone,Tablet,PC or Screen. except for this the picture quality is very good.
We buy our equip from a place in Manchester who have had this issue reported to them a few times now.
We changed the cable type,BNC type and PSU.
We found recently if we plug the cable directly into the DVR via a short 3m Pre-Terminated Co-Ax Lead we had no issue, but then even on a short 7-8m run of their shotgun cable we saw the issue very slightly.
It could be their RG59+2 Shotgun Cable isn't sheilded properly so we are looking at trying this also.
I was told it could be the firmware of the camera needs to be updated but you cant update the firmware on these only of the DVR which i am reluctant to do
Has anyone else had this experience?
Thanks