The idea is to have the car sharp and the background completely fuzzy. this gives us the focus on the main subject of the picture.
The idea is to follow the subject at the same speed so that during the exposition time the subject stays at the same place and the rest of course will be moving.
1/10 to 1/20 sec will do it.
This really depend on the light conditions. If you have a lot of light, let's say a sunny day go for F16
If you have low light condition go wider F4
going faster or slower will provoke a blurry subject and the shot will be ruined.
This is not an easy shot because you have to move at the same speed as the car. Usually, it takes a few shot to get it right
The idea is to follow the subject at the same speed so that during the exposition time the subject stays at the same place and the rest of course will be moving.
1/10 to 1/20 sec will do it.
What about Aperture ?
This really depend on the light conditions. If you have a lot of light, let's say a sunny day go for F16
If you have low light condition go wider F4
Things to avoid.
going faster or slower will provoke a blurry subject and the shot will be ruined.
Patience
This is not an easy shot because you have to move at the same speed as the car. Usually, it takes a few shot to get it right