How to shoot the lens to shoot the trajectory of the car?

If it is a light track for shooting car movement at night, then use B-door+tripod.

May I show you a photo? The aperture I use is F 1 1? White balance fluorescent lamp? Then try the shutter time repeatedly, usually about 2-3 seconds is enough.

What about taking pictures of cars during the day? Then use the manual M+ tripod. ? Let's focus first, shall we, like in the middle of the road? The aperture should be reduced by one step at the maximum aperture. And then between 60 and 30 seconds? Focus when the car passes by? Where is the front hood or windshield of the car? So you can take a picture of the tail trajectory. Of course, it is impossible to show a movie at once, okay? You still have a lot to practice.