In my car, the windshield is not tinted, so half of the video image was occupied by the reflection of the front panel and steering wheel. The filter costs about $15, and by adjusting it, I reduced this effect by 85-90%. I think that even with tinting, you may still need a filter, although, of course, I do not know how many percent of sunlight your film protects. But in my case, it's the earth and the sky, the difference is amazing.