Huisan PTZ Camera Ghosting Double Images

[Bradmph]

Hi, I am doing some License Plate capturing and using these settings below for Huisan PTZ 10x camera...

Set the Image / Exposure settings to Shutter Priority, Shutter 1/425, Exposure Bias On: Comp Level 50, Cain Limit 50.
Image / Focus to Manual, Min Focus Distance to INFINITE.
Manual focus the camera to the the general distance of where license plates will be.

I am getting a pretty good image of plates at close to 100 feet using camera IR and I also have an IR flood, but it is pointed about 45 degrees away from plate pickup point. I seem to have a ghosting effect that I would like to fix if I can. The fps are 20 and set to 1920x1080. System seems Ok handling this. I did notice with the settings above, my bit-rate fluctuated quite a bit, but it seems OK now considering the view is dark until a plate crosses the screen. Anyway, here is an image of what I am asking about.

You can notice the image has a weak double exposure. This is also a moving vehicle going maybe 20-25mph when taken.

 

[bp2008]

This is nothing you can fix in camera settings. It is light bouncing around in the camera optics, I'm fairly certain. A.k.a. lens flare.

 

[Bradmph]

It almost reminds me of a slow shutter speed. The camera is open shutter in increments and it starts taking in digital information just before fully open. Sort of like when you have a slow exposure and the subject moves while shutter open.

I ran a test and this is strange. The ghost is trailing the image in both directions. Like a stutter

 

[nayr]

If you increase the shutter speed does it go away? Do you have any noise reduction settings on that camera? try lowering them..

I noticed my LPR camera started to flare up alot and it ended up being the lens got dirty; think the neighbors mowing company might of blown a bunch of grass at it.. it didnt cause ghosting but it was making reflections flare all over.