>>3096955you shouldn't let a flat F1 track stop you though, these f1 shots were all taken from the spectator areas of the melbourne gp track, which is very flat, and is lined entirely with catch fencing
on a cloudy day, a long or fast (preferably both) tele lens should make short work of the catch fencing, I've found that you mostly have to stick to your centre AF point if you want any kind of consistent accurate AF though
