I am looking for an IP license plate camera that will give me clear tag readings at night while it's raining that works with Blue Iris. the IPC-HFW5231E-Z12E works great as long as it's not raining! Thanks so much.
The Hikvision DS-2CD7A26G0/P-IZHSx DeepinView Ultra-Low Light Outdoor LPR Bullet Camera is designed to capture vehicle images and recognize license plate numbers in a variety of lighting conditions.
The above camera is very good, and has a 32mm lens. The Z12 has a 64mm lens so distance to your capture point will make a difference.
Rain in particular isn't that big of a problem. Here's a 5231E-Z12E at 120ft in a pretty hard afternoon rain.
Of course it gets darker in thunderstorms so if running color, it does certainly darken the picture. Night will be similar, but actually less of a problem with external IR. I'll see if I can find an example, but we've been rather dry the past 30 days here..
Settings will have a lot to do with your image. Can you post an example snapshot of the problem you're seeing?