The problem of video being totally out of synch might be as someone has laready mentioned using car's GPS.
I only did a test on a big parking lot and to my eye the video turned out 100% in synch. I don't have Nav. I haven't used it on a track yet as only recently managed to put the track to the system.

Sgroer, sorry but your video result is total rubbish. Out of synch just everywhere.

Thanks for sharing anyway as we learn that it might be GPS related.

 

The nice thing about the track precision app is that Porsche definitely knows where you were when the car breaks down. Lol. JK. If real data and learning is desired---then OrthoJoe's set up is ideal.

 

You guys are expecting way too much for $2k. It's "pretty close".

 

I don't have any experience of the PTA but doesn't Porsche recommend an external GPS?

 

sgroer, the focus problem you mention is not because of the phone holder, it's a problem of the stabilize software from the iOS. No matter you are using porsche's app or harry's lap timer, the video quality is the same, which means the problem is iPhone itself.


I'm using iPhone 6s and the phone holder is from RAM, which is a solid product.