Try the following solutions
1.Use Focus in / focus out to control the Clarity.
2.Check whether the lens or housing gets dirty.
3.Avoid of strong light condition.
1.ICR switches frequently
2.Images probably look dark
3.Ripples appear in the image.
4.The camera might turn on/off often
When this happens please follow the below solution:
Set the camera to electronic shutter mode when trying to focalize using automatic iris lens, then change back to automatic iris mode. Or try to focalize under low illumination condition.