Camera Techniques; Pull focus

Pull focus is when you see the foreground in focus then after a couple of seconds the foreground blurs and the background focuses. This can also work when the background is in focus first then the foreground comes into focus.

Film Example of pull focus - 10 Years a slave


My own examples;

1.

foreground focus    background focus


This was an experimentation of pull focus and my first go but instead of it changing focal points, the whole shot goes out of focus instead.
As you can also see near the top middle of the shot there is some lens flare. Lens flare can be quite usual is some shots although not quite so much in my example.


2.










background focus    foreground focus


This example of pull focus is a lot better than the first as you see the clear transition of the pull.