Rear window distortion after tinting

I recently had Pinnacle 35 tint applied to the side and rear windows of my 2010 Prius 2. The sides look great, however if you focus on the rear window tint film you can see an orange-peel texture. This causes blurry vision out the back, especially for headlights behind me. The rear window also has several specks which appear to be trapped bits of lint. I don't know how this could happen since it's the same film and the same installer all the way around the vehicle and the other windows are fine.

Is this normal, perhaps due to the shallow angle of the rear window? Or does it indicate a bad tint job? I'd get it re-done but I'd hate to waste the money if it's not likely to get any better next time around.

 

It was installed a week and a half ago. It's been exposed to plenty of sun and heat in the meantime. The vehicle is stored outside in central Texas, and we're in the midst of a record drought and heatwave.

 

Well I wasn't able to take it by since the tint shop is quite a distance from here, but after describing the problem they've agreed that Pinnacle tint should be optically clear and they will replace the rear window tint. I'm also hoping the next time around won't have nearly as many air specks under the film.

Tentatively scheduled for two saturdays out, 9/12.

 

Just thought I'd post a follow-up. My installer removed and replaced the rear window tint and it's significantly clearer now. They say it may have been a bad piece of film. I've also got a couple of air specks under the new film, but quite a few less than last time.