Use this article if…
- Picture is soft, foggy, or water inside the housing, mechanical / environmental - not video encoding.
- Sparkles, rolling bars → Wrong picture or flicker / interference.
Quick answer
Blurry reverse in damp weather is often grime on the lens or water past housing seals - clean the lens gently first; if moisture sits inside the pod, plan on replacement rather than debugging “video format.”
Problem
- Lens is dirty, fogged, or full of condensation after wet trips.
Symptoms
- Blurry reverse view only in damp weather.
- Water inside the camera housing.
Cause
- Moisture ingress, failing seals, or grime on the lens scatter light and soften detail.
Fix Step-by-step
- Clean lens with soft cloth; avoid scratching coatings.
- Check housing seals and torque on number-plate mounts.
- Replace camera if water is inside the sensor pod.
- Re-route washer jets that spray directly at the lens.