I purchased three Bullet 2C cameras from the brand Imou, as well as the NVR. However, despite all three cameras being the same brand and model, there is a noticeable difference in quality with one of them. I tried adjusting some settings on the NVR, but it didn't help. Another curious difference is in the way the "Imou" logo is displayed at the bottom of the screen. It is different on the camera that appears to have the worse quality.



