Analog Camera Woes

I'm a long time IT guy who's picked up IP cameras over the last couple of years; analog cameras are foreign to me. We opened an outdoor housing to clean the front glass, and reposition the camera (housing) a bit; the video feed changed to a 60/40 black/white split. As in, the left ~60% of the image is black, the right ~40% is white, and there's a bit of grey at the transition point. Fiddling with the zoom & focus controls have no impact. The coax connection doesn't appear loose.

Any ideas on what's going on? We're belt tightening like crazy, so I'm trying to not just throw up my hands and replace it w. an IP camera if we can help it.

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