You attach the camera to the car, and then take a picture white its moving.
I know I got negative camber, its at max negative right now which happens to be -3 degrees, I am to lazy to set it back to street mode after the last autocross.
Too bad BBS doesn't make the RG-R, RS GT or the RXII's in 18X11 with the right offset so I can slap those suckers on the back and put some 315/30R18 on.