apparently COTA arent allowing anyone to bring a lense over 10inchs long unless your one of the official photographers like sutton etc
In response to fan feedback, Circuit of The Americas has updated the list of prohibited items for the FORMULA 1 UNITED STATES GRAND PRIX, Nov. 16-18, 2012.
Patrons with still cameras featuring detachable lenses smaller than 10 inches in length WILL BE permitted on site during the Grand Prix event. However, detachable camera lenses longer than 10 inches will be prohibited.